@article {7110,
	title = {numerical investigation of buried pipelines subjected to permanent ground deformation due to shallow slope failure (part i: transverse behaviour).},
	journal = {Jordan Journal of Civil Engineering, JJCE},
	volume = {17},
	number = {1},
	year = {2023},
	abstract = {
	Permanent Ground Deformations (PGD) that follow slope failures caused catastrophic damages on buried pipelines. This paper presents a two-dimensional numerical analysis of the behavior of an 800mm water transport pipeline buried in the Aine-Tine slope (Mila, Algeria) subjected to shallow PGD triggered by the recent earthquake of August 07th, 2020 (M= 4.9). The soil-pipeline interaction was simulated focusing on the effect of (1) the magnitudes of the PGD and (2) the rigidity of the pipeline on the structural response of the pipeline. The pipeline deformations (i.e., translation and ovalization) and radial internal efforts (i.e., axial forces F_A, shear forces F_S, and bending moments M_B) result highlighted that shallow PGD can cause additional loads on pipelines that are proportional to the magnitude of PGD. Moreover, it was found that rigid pipelines are more performant than flexible pipelines. Through a simplified numerical simulation, the study helps engineers and planners to predict the actual causes of pipeline leaks and ruptures leading to severe disruption of their normal operations.

},
	url = {https://jjce.just.edu.jo/issues/show_paper.php?pid=6778},
	author = {Bouatia, Med and Demagh, Rafik and Derriche, Zohra}
}
@proceedings {7713,
	title = {Comportement des portiques m{\'e}talliques expos{\'e}s au feu naturel},
	journal = {LE 1ER SEMINAIRE NATIONAL DE GENIE CIVIL ET DES TRAVAUX PUBLICS {\textquotedblleft} SNGCTP-1{\textquotedblright}},
	year = {2022},
	address = {Khenchela, Algeria},
	author = {Gherabli, Soumia and Dimia, Mohamed-Salah and Baghdadi, Mohamed and Belakhdar, Ahmed-Rafik}
}
@proceedings {7712,
	title = {Evaluation de la Capacit{\'e} Portante Lat{\'e}rale des Voiles apr{\`e}s Exposition {\`a} un Feu Naturel},
	journal = {LE 1ER SEMINAIRE NATIONAL DE GENIE CIVIL ET DES TRAVAUX PUBLICS {\textquotedblleft} SNGCTP-1{\textquotedblright}},
	year = {2022},
	address = {Khenchela, Algeria},
	author = {Baghdadi, Mohamed and Dimia, Mohamed-Salah and Ghrabli,  Soumia}
}
@proceedings {7711,
	title = {Evaluation Exp{\'e}rimentale des Caract{\'e}ristiques R{\'e}siduelles du B{\'e}ton Fabriqu{\'e} avec Diff{\'e}rents Types de Sable Expos{\'e} au Feu},
	journal = {LE 1ER SEMINAIRE NATIONAL DE GENIE CIVIL ET DES TRAVAUX PUBLICS {\textquotedblleft} SNGCTP-1{\textquotedblright}},
	year = {2022},
	address = {Khenchela, Algeria},
	author = {Baghdadi, Mohamed and Belakhdar, Ahmed-Rafik and Dimia, Mohamed-Salah and Gherabli, Soumia}
}
@article {7697,
	title = {A Parametric Study of Fire-Damaged Reinforced Concrete Columns under Lateral Loads},
	journal = {Engineering, Technology \& Applied Science Research},
	volume = {12},
	number = {5},
	year = {2022},
	pages = {9113-9119},
	abstract = {
	Columns are the structural members of buildings that ensure structural stability. A fire can severely affect the columns{\textquoteright} structural performance by degrading the properties of their constituent materials, thereby reducing the strength capacity, stiffness, and stability. In seismic zones, the knowledge of the post-fire behavior of these elements is a fundamental requirement for a realistic seismic performance assessment. This study utilized numerical analysis using the parametric fire model of Eurocode-1 to estimate the post-fire axial and lateral performance of reinforced concrete columns. In the first step, the axial load-bearing capacity was evaluated from a parametric study for cantilever columns. In the second step, the lateral load capacity, force-displacement behavior, stiffness, ductility, energy dissipation capacity, and residual displacements were estimated to determine the impact of fire damage on the behavior of columns under lateral loads. The results showed that both the lateral load capacity and the ductility of the reinforced concrete columns decreased significantly due to fire exposure. This also indicated that fire damage decreases the vertical load-bearing capacity, and the reduction in lateral capacity was attributed to the loss of concrete{\textquoteright}s compressive strength. The column characteristics that significantly influence the residual response behavior were identified as section size, column height, axial load ratio, and concrete{\textquoteright}s compressive strength.

},
	url = {https://www.etasr.com/index.php/ETASR/article/view/5172},
	author = {Baghdadi, Mohamed and Dimia, Mohamed Salah and Baghdadi, Djassem}
}
@proceedings {7126,
	title = {Analyse Numerique D\&rsquo;une Fondation Superficielle Reposant Sur Un Sol Non-Sature En Hypoplasticite},
	journal = {5{\`e}me Colloque International sur les sols Non Satur{\'e}s, UNSAT, 15-16 Mars },
	year = {2022},
	address = {Ouargla, Algeria},
	author = {Amrane, M and Messast, S and Demagh, Rafik}
}
@proceedings {7121,
	title = {Confirmation according to several international codes on the perfect compatibility of the Algerian earthquake regulations with the seismic base isolation technique of the buildings},
	journal = {2nd International Conference on Civil Engineering, Architecture and Sustainable infrastructure (ICCEASI-2022). February 09-10},
	year = {2022},
	address = { India},
	url = {https://www.upcomingengineeringconferences.com/international-conference-on-civil-engineering-architecture-sustainable-infrastructure-icceasi-.html },
	author = {Ounis,  Hadj M and Bezih, Kamel}
}
@proceedings {7120,
	title = {Effect of soil-structure interaction on the long-term response of RC structures},
	journal = {44th Paris International Conference on Advance in Enginnering Science \& Technologie (PAEST-2022). Septembre 26-28},
	year = {2022},
	address = {Paris-France},
	url = {https://10times.com/e1r1-f3r0-h2fx },
	author = {Bezih, Kamel and al}
}
@article {7111,
	title = {Rotation of Stresses in French Wheel Tracking Test},
	journal = {Civil Engineering Journal},
	volume = {8},
	number = {3},
	year = {2022},
	abstract = {
	The main function of a pavement is to distribute the traffic-induced load over its different layers. While the flexible pavement design methods are based on a linear elastic calculation, the real behavior of the different layers is highly nonlinear and elastic. They can also, in some cases, be plastic and viscous. This research aims to develop a three-dimensional numerical model that is closely similar to the test FWTT conditions. The model will have a real geometry wheel footprint (rather than a rectangular shape). As a substitute for incremental loading, the wheel movement during its passage over the specimen will be simulated by a horizontal displacement. These important characteristics of the model represent the novelty and the major difference between the current research and previous studies. The current model, which is based on the finite elements method, uses Abaqus software and a viscoelastic constitutive model. The materials{\textquoteright} viscoelastic properties have been described by the Prony series, also called the relaxation modulus, which is a function of time. This parameter can be defined in most computer-aided engineering (CAE) software. The procedure for calculating the Prony series from experimental data is explained. The results obtained agree with the stress signal amplitude, the stress rotation principal, and the total displacement rotation when the load approaches the node considered and located in the middle of the specimen.

},
	url = {http://dx.doi.org/10.28991/CEJ-2022-08-03-03},
	author = {Djenane, Mohamed and Demagh, Rafik and Hammoud, Farid}
}
@proceedings {7109,
	title = {Contribution {\`a} l\&$\#$39;{\'e}tude d\&$\#$39;am{\'e}lioration de la capacit{\'e} portante d\&$\#$39;un talus par des g{\'e}ogrilles et des ancrages en grilles},
	journal = {1 er S{\'e}minaire National de G{\'e}nie Civil et des Travaux Publics  SNGCTP-1},
	year = {2022},
	address = {khenchela, Alg{\'e}rie},
	url = {http://tele-ens.univ khenchela.dz/documents/Archives2021++/manifestations-sc/SNGCTP-1.pdf},
	author = {Benaicha, Amar Cherif and Mansouri, Tarek and Saadi, Mohamed and Yahiaoui, Djarir}
}
@article {7102,
	title = {Lateral Reliability Assessment of Eccentrically Braced Frames Including Horizontal and Vertical Links Under Seismic Loading},
	journal = {Engineering, Technology \& Applied Science Research},
	volume = {12},
	number = {2},
	year = {2022},
	pages = {8278-8283},
	abstract = {
	Eccentrically Braced Frames (EBFs) have been widely used in the last decades and proved their efficiency to resist strong earthquake intensities by providing suitable ductility and lateral stiffness. Using the PBPD method for the design, EBFs can fulfill the target performance objectives under major earthquakes. The most commonly used configurations are the K-shaped and the recent Y-shaped EBFs, which have the advantage that the links are independent of the beam and can be easily replaced after an earthquake without serious damage to the beam and slab. This study focused on the lateral reliability of both systems under seismic loading. Nonlinear static pushover and Incremental Dynamic Analysis (IDA) were performed on 5-story and 10-story K- and Y-shaped EBFs. A series of 14 near- and 7 far-field seismic records were considered to analyze and compare the inter-story drifts of both systems using the Seismostruct software. Moreover, Peak Ground Accelerations (PGA) and the different performance levels were also examined.

},
	url = {https://www.etasr.com/index.php/ETASR/article/view/4749},
	author = {Abdelhamid, F and Yahiaoui, Djarir and Saadi, Mohamed and Lahbari, Noureddine}
}
@proceedings {7101,
	title = {The influence of road traffic on heavy metal contamination of road dust and roadside soil along a major RN3 highway through a rural area in northeastern Algeria},
	journal = {5th International Conference of Contemporary Affairs on Architecture and Urbanism (ICCAUA-2022)},
	year = {2022},
	address = {Alanya, Turkey},
	url = {https://www.iccaua.com/page/home},
	author = {Benabid, A and Mansouri, Tarek}
}
@proceedings {7100,
	title = {Effects of underground circular void on strip footing laid on the edge of a cohesionless slope under eccentric loads},
	journal = {5th International Conference of Contemporary Affairs on Architecture and Urbanism (ICCAUA-2022), },
	year = {2022},
	address = {Alanya, Turkey},
	url = {https://www.iccaua.com/page/home},
	author = {Mansouri, Tarek and Benabid, A and Saadi, Mohamed and Benaicha, Amar Cherif}
}
@article {7096,
	title = {Valorization of sediment extracted from the dam in construction works},
	journal = {Modeling Earth Systems and Environment},
	volume = {8},
	year = {2022},
	pages = {4093{\textendash}4102},
	abstract = {
	Sedimentation of dam reservoirs is a complex problem with several dimensions, including filling rates and characteristics of accumulated sediments. Sediment supply from river basins is particularly high in this region because of its semi-arid climate and especially because of poor vegetation protection. The amount of silt accumulated annually since the construction of this dam is estimated at 330000 m3. This silt accumulation strongly limits its storage capacity and consequently its operating duration. The consequences of this serious problem have been catastrophic, including a considerable reduction of 43{\textendash}84\% of the storage capacity of the dams and a clear degradation of water quality that can cause the degradation of the ecosystem functioning and can lead to irreversible changes. The silt present in abundance in the Algerian dams can, thus, constitute a potential resource to be judiciously exploited towards the increase of the performances of the construction materials. The extraction of sediments accumulated in the dam reservoir is, therefore, imperative. These sediments have a great geotechnical value. The objective of this study is to assess the feasibility of the recovery of mud by studying the knowledge of the sediments of the dam of Koudiat Medouar. The results of the tests carried out in laboratory allowed us to identify the various sediments from a physical and geotechnical point of view. These materials must of course meet certain rigorous criteria in terms of mechanical strength and durability and environmental impact. The experimental approach that we adopted allowed us to determine the characteristics of the materials necessary for the realization of compressed earth bricks (BTC) in conformity with the recommendations of the technical guides of construction.

},
	url = {https://link.springer.com/article/10.1007/s40808-021-01326-x},
	author = {Benaicha, Amar Cherif and Fourar, Ali and Mansouri, Tarek and Fawaz, Massouh}
}
@article {7087,
	title = {Impact of Calcium Chloride on the Microstructure of a Collapsible Soil},
	journal = {Annales de Chimie - Science des Mat{\'e}riaux },
	volume = {46},
	number = {4},
	year = {2022},
	pages = {201-206},
	abstract = {
	The study of the collapse of soils under the effect of flooding is a major problem in soil mechanics. Most of the work done on the treatment of these soils has been devoted to the use of binders of hydraulic or organic types. However, little work has been devoted to the use of salt calcium chloride in collapsible soil treatments. The purpose of this study is to evaluate the effect salt calcium chloride on a reconstituted collapsible soil in the laboratory, at different levels of water content, compaction energy and concentration of the saline solution. The results obtained showed a significant reduction in the potential for soil deformation and an illustration and a noticeable interaction between the soil particles and the saline solution resulting in a denser material.

},
	url = {https://www.iieta.org/download/file/fid/79961},
	author = {Bahloul, Ouassila and Ziani,  Hocine and Benmoussa, Samir}
}
@article {7086,
	title = {Effects of drying-wetting cycles on the salinity and the mechanical behavior of sebkha soils. A case study from Ain M\&$\#$39;Lila, Algeria},
	journal = {CATENA},
	volume = {2012},
	year = {2022},
	abstract = {
	Sebkha soils are defined as problem soils located in arid, semi-arid, and coastal areas. Generally, they are fine soil, composed of silt, sand, and clay, which are cemented by different salts (e.g., halite, gypsum, and calcite). In nature, sebkha saline soils are exposed to different drying and wetting (D-W) cycles. However, these cycles have a significant effect on the mechanical behavior of these soils. This study aims to characterize the chemical, mineralogical, and geotechnical properties of sebkha soil using an experimental approach. We focus on the effects of D-W cycles on the unconfined compressive strength (UCS) and\&nbsp;salinity\&nbsp;of sebkha soils from Ain M{\textquoteright}Lila, Algeria. In addition, these D-W cycles were applied to the samples dried in the open air to achieve the targeted water content (water content values of 7\%, 11.4\%, and 13\%). The results obtained show that the UCS increases with decrease in water content and decreases with an increase in the number of D-W cycles. In addition, these cycles affect the salinity of the sebkha soil. Indeed, a significant decrease in\&nbsp;soil salinity\&nbsp;was recorded with an increase in the number of D-W cycles. Finally, a relationship was found between the salinity of the soil and UCS. The latter decreases with a decrease in soil salinity; this relationship becomes very significant for low water content values of 7\% or less.

},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S0341816222000856},
	author = {Hafhouf, Ilyas and Bahloul, Ouassila and Abbeche, Khelifa}
}
@article {7085,
	title = {Numerical Evaluation of Soil-Pile-Structure Interaction Effects in Nonlinear Analysis of Seismic Fragility Curves},
	journal = {Transportation Infrastructure Geotechnology},
	volume = {9},
	year = {2022},
	pages = {155{\textendash}172},
	abstract = {
	Seismic fragility curves are considered an effective tool for the evaluation of the behavior of interaction of the soil-pile-structure (ISPS) subjected to earthquake loading. In this research, in order to better understand the ISPS effect, a nonlinear static analysis is applied with a variation of the vertical load, the diameter of pile, and finally the longitudinal steel ratio of the pile in different types of sand (loose, medium, dense) to obtain the capacity curves of each parameter for elaborating the curves of fragility. After a comparison of fragility curves of these parameters, it appears that the effect of the ISPS system is advantageous with respect to the vertical axial load and the diameter of pile, while the longitudinal ratio of the pile depending on the ductility and the lateral resistance of the ISPS system. The proposed equation is intended to help engineers in the design and performance of the soil-pile-structure interaction. The results of this equation provided a convergence with the results of the fragility curves.

},
	url = {https://link.springer.com/article/10.1007/s40515-021-00161-y},
	author = {Guettafi, Nesrine and Yahiaoui, Djarir and Abbeche, Khelifa and Bouzid, Tayeb}
}
@article {7084,
	title = {The Effectiveness of Retrofitting RC Frames with a Combination of Different Techniques},
	journal = {Engineering, Technology \& Applied Science Research},
	volume = {12},
	number = {3},
	year = {2022},
	pages = {8723-8727},
	abstract = {
	During the last two decades, the attention of researchers has been focused on repairing and retrofitting concrete frames to make them more earthquake-resistant. Two methods have been developed to increase the seismic resistance of previously undamaged structures before they are subjected to an earthquake. The first is through the addition of new structural members, such as steel braces and the second is by selectively strengthening structural elements, for instance through steel caging. Seismic response analysis results have been utilized in multi-story RC frames that were designed without seismic design criteria. This study aims to determine whether the retrofitting technique is effective based on comparisons between steel braces, steel cages, and their combinations. The seismic performance is defined by the seismic code for Algeria RPA 2003 according to the latest recommendations. Static nonlinear analysis was used to compare seismic responses of existing non-ductile reinforced concrete RC frames under a variety of retrofit schemes. The results show that retrofitting with steel caging gives excellent performance in terms of ductility and low shear capacity. The retrofitting with steel bracing increased the shear capacity but led to a severe ductility deficiency. The retrofitting structure combined with steel bracing and steel caging shows good performance in shear capacity and ductility. Using the Zipper system (steel bracing) and V system in combination with steel caging gives similar results to the RPA model.

},
	url = {https://www.etasr.com/index.php/ETASR/article/view/4979},
	author = {Saadi, Mohamed and Yahiaoui, Djarir}
}
@article {7083,
	title = {EXPERIMENTAL VERIFICATION OF THE NEW MODELS APPLIED TO GLASS FIBRE REINFORCED CONCRETE (GFRC) CONFINED WITH GLASS FIBRE REINFORCED POLYMER (GFRP) COMPOSITES},
	journal = {Ceramics-Silik{\'a}ty},
	volume = {66},
	number = {3},
	year = {2022},
	pages = {384-395},
	abstract = {
	External confinement by the GFRP composites offers an actual process for retrofitting glass fibre reinforced concrete columns (GFRC) subject to static or seismic loads. This paper presents an experimental investigation and analytical modelling of the axial compression of confined circular concrete columns of different strengths (8.5, 16, and 25 MPa). Furthermore, the columns contain different percentages of glass fibres (0.3 to 1.2 \%), and their confinement is given by GFRP composites of various thicknesses (0.8 to 2.4 mm). The uniaxial compression test on these specimens reveals that the glass fibre percentage and the thickness of the GFRP play a vital role in improving the load-deformation behaviour and crack propagation. Whatever the concrete strength, the ultimate axial strain and stress predicted using the suggested confinement model almost agrees with the available experimental results.

},
	url = {https://www.researchgate.net/profile/Belgacem-Mamen/publication/362395622_EXPERIMENTAL_VERIFICATION_OF_THE_NEW_MODELS_APPLIED_TO_GLASS_FIBRE_REINFORCED_CONCRETE_GFRC_CONFINED_WITH_GLASS_FIBRE_REINFORCED_POLYMER_GFRP_COMPOSITES/links/631eea87071ea12e362a1f},
	author = {Yahiaoui, Djarir and Mamen,  Belgacem and Saadi, Mohamed and Bouzid, Tayeb}
}
@article {7082,
	title = {Compressive Behavior of Concrete Containing Glass Fibers and Confined with Glass FRP Composites},
	journal = {International Journal of Concrete Structures and Materials},
	year = {2022},
	abstract = {
	In this paper, numerous experimental tests were carried out to study the behavior of concrete containing glass fibers and confined with glass fiber-reinforced polymer (GFRP). Concrete specimens containing different fiber percentages ( 0.3 wt.\%, 0.6 wt.\%, 0.9 wt.\% or 1.2 wt.\%) and with different strengths of concrete (8.5\&nbsp;MPa, 16\&nbsp;MPa and 25\&nbsp;MPa) and different confinement levels (two, four and six layers of GFRP) were used as research parameters. The samples were tested to failure under pure axial compression. The results imply that the confinement effect with GFRP is relatively higher for concrete samples containing glass fiber (GFCC) with a percentage equal to 0.6 wt.\%. The theoretical of stress ratios (fcc/fco) estimated by using existing ultimate strength models are found to be close to the experimental results for high strength of GFCC, but not close to the experimental results for low strength of GFCC.

},
	url = {https://ijcsm.springeropen.com/articles/10.1186/s40069-022-00525-9},
	author = {Yahiaoui, Djarir and Saadi, Mohamed and Bouzid, Tayeb}
}
@article {7709,
	title = {The Review of Algerian Building Seismic Code(RPA) in Seven Points Compared to American and European Codes},
	journal = {The Eurasia Proceedings of Science, Technology, Engineering \& Mathematics (EPSTEM)},
	year = {2021},
	abstract = {
	The first Algerian seismic code named "R{\`e}gles Parasismiques Alg{\'e}riennes" (RPA, 1981) was established after the terrible 1980 Chlef earthquake (M 7.3), which caused a great disaster. Since this catastrophic event a continually reviewed versions, in particular after the 2003 Boumerdes earthquake (M 6.8) which caused an immense hazardous loss in human lives and construction damages (2000 seath) persons killed). This harmful event urged on to a serious review leading to the last and present version of such standard earthquake (RPA, 2003) with fundamental modifications concerning many important fields. The points revealed in the present review research study are the classification of sites, design methods, design spectrum, ductility concept, behavior factor, self-steady structures and dual systems (frames and walls). The outcome of the study here in is summarized as a brief review that could be a contribution to enrich the Algerian seismic regulation (RPA) with a focus on these seven important points selected as they seem to present some anomalies or deficiencies detected and treated on the basis of two main parameters. Firstly, we consider the damage observed after the 2003 Boumerdes earthquake; later in the second step, a comparison is made with other codes practiced over the world alike the European EC8 or the American Uniform Building Code, 1994 (UBC 94) or the 2000 NEHRP Provisions.

},
	author = {Boulaouad, Abderachid and Belagraa, Larbi and Bouglada, Mohamed-salah}
}
@proceedings {7708,
	title = {Statistical Modelling of the Compressive Strength of Mortar Based on Cement Blended with Mineral Additions by the Method of Experimental Design},
	journal = {The Eurasia Proceedings of Science, Technology, Engineering \& Mathematics (EPSTEM)},
	year = {2021},
	abstract = {
	This experimental study aims to study the mechanical behaviour of a mortar based on cement blended with mineral additions (pozzolana, limestone and slag), knowing that the mechanical strength of a mortar is closely related to its composition. The use of the three mineral additions simultaneously, presents a high number of factors affecting the mechanical resistance and requires a very large number of experiments and the obtained data analysis becomes much more complex. In order to optimise the number of tests and to achieve a such satisfactory analysis, a statistical approach known as an "experimental design" was used. The experimental methodology has been established to assess the compressive strength of mortars at 2, 7, 28 and 60 days, by the elaboration of an experimental design for a set of cement mixtures, the level of the three additions (factors), slag, limestone and pozzolana at rates varying from 0\% to 35\%, provided that a fixed dosage of 35\% is maintained for all combinations to form a binary, ternary and quaternary cement in accordance with cement standard requirements CEM II/B. This statistical approach allowed us to evaluate by a numerical analysis the effect of each addition alone as well the meaning of the double or triple interaction resulting from the association of two or three additions at a time. In addition, it has enabled us to establish a representative model that permitted to estimate and predict the mechanical behaviour of any composition in the experimental program with tolerable errors. The obtained results lead to a satisfactory numerical modeling of the compressive strengths, in particular at the age of 28 days, with a trend curve of a an acceptable determined coefficient of R 2 equal to 0.87.

},
	url = {http://www.epstem.net/en/download/article-file/2139315},
	author = {Bouglada, Mohamed-salah and Noui , Ammar and Belagraa, Larbi}
}
@proceedings {7707,
	title = {Renforcement et r{\'e}paration des structures par collage de mat{\'e}riaux composites},
	journal = {2ND INTERNATIONAL SYMPOSIUM ON CONSTRUCTION MANAGEMENT AND CIVIL ENGINEERING (ISCMCE- 2021) UNIVERSITY OF SKIKDA, ALGERIA},
	year = {2021},
	author = {Bouderradji, Meriem and Dimia, Mohamed-Salah and Lahbari, Noureddine}
}
@proceedings {7706,
	title = {Les m{\'e}thodes de r{\'e}paration des fissures profondes et superficielles des structures},
	journal = {SECOND INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING ICCE{\textquoteright}2021},
	year = {2021},
	author = {Bouderradji, Meriem and Dimia, Mohamed-Salah and Lahbari, Noureddine}
}
@proceedings {7705,
	title = {Comportement des dalles en b{\'e}ton arme en conditions d\&$\#$39;incendie},
	journal = {2{\`e}me S{\'E}MINAIRE INTERNATIONAL SUR LES SCIENCES DE LA MATIERE},
	year = {2021},
	author = {Guergah,  Cherif and Dimia, Mohamed-Salah and Baghdadi, Mohamed}
}
@proceedings {7704,
	title = {Experimental Assessment of the Post-Fire Properties of Concrete},
	journal = {1ST INTERNATIONAL VISIO CONFERENCE ON MATERIALS SCIENCE AND ENGINEERING(ICMSE 2021)},
	year = {2021},
	address = {Khenchela, Algeria},
	author = {Baghdadi, Mohamed and Dimia, Mohamed-Salah}
}
@proceedings {7703,
	title = {Numerical Analysis of Lateral Capacity Performance of Fire-Damaged Reinforced Concrete Walls},
	journal = {INTERNATIONAL CONGRESS ON SCIENTIFIC ADVANCES (ICONSAD{\textquoteright}21)},
	year = {2021},
	address = {Turquie},
	author = {Baghdadi, Mohamed and Dimia, Mohamed-Salah}
}
@article {7700,
	title = {Optimization of Cellular Concrete Formulation with Aluminum Waste and Mineral Additions},
	journal = {Civil Engineering Journal (C.E.J)},
	volume = {7},
	number = {7},
	year = {2021},
	abstract = {
	The paper aims to study cellular concrete with a new approach of formulation without an autoclave, with the use of aluminum waste and incorporation of mineral additions into the sand and evaluate its physical and mechanical properties. In this experimental study, two types of cellular concrete are prepared, based on crushed and dune sand with the incorporation of 15\% of the slag and 10\% of pozzolana, as sand replacement. An experimental program was performed to determine the compressive strength at 28 days, the density and thermal conductivity of the confected cellular concrete. The obtained results showed that concretes prepared with crushed sand developed better mechanical resistance compared to the dune sand. It is also noted that the concretes containing the mineral additions provide a substantial increase in compressive strength in particular slag. Furthermore, cellular concretes with sand dunes offer better thermal conductivity, compared to those with crushed sand. The use of the additions reduces the Water/Binder (W/B) ratio and leads to a lower thermal conductivity regardless of the used sand nature. The outcome of the present study here in could present a modest contribution for the production of cellular concrete with local materials in particular dune sand, active mineral addition and aluminum waste. The physical and mechanical properties obtained from this new composition are estimated acceptable compared to those of the industry-prepared cellular concrete product.

},
	url = {https://www.civilejournal.org/index.php/cej/article/view/2840},
	author = {Bouglada, Mohammed_Salah and Noui , Ammar and Belagraa, Larbi}
}
@article {7699,
	title = {Numerical Modelling of One-Way Reinforced Concrete Slab in FireTaking Into Account of Spalling},
	journal = {Civil Engineering Journal (C.E.J)},
	volume = {7},
	number = {3},
	year = {2021},
	abstract = {
	This paper presents a study of the behaviour of Reinforced Concrete (RC) slabs subjected to severe hydrocarbon fire exposure. In which the spalling phenomena of concrete is to be considered. The hydrocarbon curve is applicable where small petroleum fires might occur, i.e. car fuel tanks, petrol or oil tankers, certain petro-chemical facilities, tunnels, parking structures, etc. Spalling is included using a simplified approach where elements with temperatures higher than 400 {\textdegree}C are assumed to occur and the corresponding thermo-mechanical response of RC slabs is evaluated. The nonlinear finite element software SAFIR has been used to perform a numerical analysis of the spalling risk, by removing layers of concrete covering when a set of spalling criteria is checked. The numerical results obtained by finite element analysis of the temperature distribution within the slab and mid-span deflection were compared with published experimental data. Predictions from the numerical model show a good agreement with the experimental data throughout the entire fire exposure to the hydrocarbon fire. This shows that this approach (layering procedure) is very useful in predicting the behaviour of concrete spalling cases.

},
	url = {https://www.civilejournal.org/index.php/cej/article/view/2666},
	author = {Guergah,  Cherif and Dimia, Mohamed-Salah and Benmarce, Abdelaziz}
}
@article {7698,
	title = {An experimental and numerical analysis of concrete walls exposed to fire},
	journal = {Structural Engineering and Mechanics},
	volume = {77},
	number = {6},
	year = {2021},
	pages = {819-830},
	abstract = {
	\&nbsp;To evaluate the performance of concrete load bearing walls in a structure under horizontal loads after being exposed to real fire, two steps were followed. In the first step, an experimental study was performed on the thermo-mechanical properties of concrete after heating to temperatures of 200-1000oC with the purpose of determining the residual mechanical properties after cooling. The temperature was increased in line with natural fire curve in an electric furnace. The peak temperature was maintained for a period of 1.5 hour and then allowed to cool gradually in air at room temperature. All specimens were made from calcareous aggregate to be used for determining the residual properties: compressive strength, static and dynamic elasticity modulus by means of UPV test, including the mass loss. The concrete residual compressive strength and elastic modulus values were compared with those calculated from Eurocode and other analytical models from other studies, and were found to be satisfactory. In the second step, experimental analysis results were then implemented into structural numerical analysis to predict the post-fire load-bearing capacity response of the walls under vertical and horizontal loads. The parameters considered in this analysis were the effective height, the thickness of the wall, various support conditions and the residual strength of concrete. The results indicate that fire damage does not significantly affect the lateral capacity and stiffness of reinforced walls for temperature fires up to 400oC.

},
	url = {http://www.techno-press.org/content/?page=article\&journal=sem\&volume=77\&num=6\&ordernum=10},
	author = {Baghdadi, Mohamed and Dimia, Mohamed Salah and Guenfoud, Mohamed and Bouchair, Abdelhamid}
}
@proceedings {7138,
	title = {Analyse Num{\'e}rique tridimensionnelle de l\&rsquo;interaction de Tunnels Jumeaux- {\'e}tude de cas},
	journal = {The 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE- 2021), 10-11 Novembre },
	year = {2021},
	address = {Skikda, Algeria},
	url = {http://ftech.univ-skikda.dz/ISCMCE2021/},
	author = {Zerdia, M and Demagh, Rafik}
}
@proceedings {7137,
	title = {Mod{\'e}lisation du comportement sur chemin de drainage-humidification de la marne de Boumagueur -Batna-},
	journal = {2nd International Symposium on Construction Management and Civil Engineering (ISCMCE 2021) },
	year = {2021},
	address = {Skikda, Algeria},
	author = {Mebarki, Mehdi and al}
}
@proceedings {7136,
	title = {Identification and characterization of the swelling of a soil in the Boumagueur region-Batna-},
	journal = {Second International Conference on Civil Engineering (ICCE 2021) },
	year = {2021},
	address = {Laghouat, Algeria},
	author = {Mebarki, Mehdi and al}
}
@proceedings {7135,
	title = {Impact of long-term soil deformations on the performance of RC bridges considering soil-structure interaction},
	journal = {First International Conference on Geotechnical, Structural and Advanced Materials Engineering (ICGSAME{\textquoteright} 2021), 05-07 D{\'e}cembre },
	year = {2021},
	address = {Biskra, Alg{\'e}rie},
	author = {Bezih, Kamel and Demagh, Rafik and Djenane, Mohamed and Laouche, M}
}
@proceedings {7130,
	title = {{\'E}valuation de la capacit{\'e} portante des sols stratifi{\'e}s {\`a} l\&$\#$39;aide d\&$\#$39;un logiciel d\&$\#$39;analyse par {\'e}l{\'e}ments finis.},
	journal = {The 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE- 2021),10-11 Novembre },
	year = {2021},
	address = {Skikda, Algeria},
	author = {Amrane, Moussa and Messast, Salah and Demagh, Rafik}
}
@proceedings {7129,
	title = {La Reponse D\&rsquo;une Fondation Superficielle A Une Infiltration Continue A La Surface Du Sol},
	journal = {The 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE- 2021), 10-11 Novembre,},
	year = {2021},
	address = {Skikda, Algeria},
	author = {Amrane, Moussa and Messast, Salah and Demagh, Rafik}
}
@proceedings {7128,
	title = {Impact of long-term soil deformations on the performance of RC bridges considering soil-structure interaction},
	journal = {First International Conference on Geotechnical, Structural and Advanced Materials Engineering (ICGSAME{\textquoteright} 2021), 5-7 December,},
	year = {2021},
	address = {Biskra, Algeria},
	author = {Bezih, Kamel and Demagh, Rafik}
}
@proceedings {7127,
	title = {Numerical Analysis of Movements Induced by Mechanized Twin Tunnels Excavation-Case Study},
	journal = {First International Conference on Geotechnical, Structural and Advanced Materials Engineering (ICGSAME{\textquoteright} 2021) , 5-7 December },
	year = {2021},
	address = {Biskra, Algeria},
	url = {https://icgsame.info/},
	author = {Zerdia, M and Demagh, R}
}
@proceedings {7108,
	title = {Contribution {\`a} l\&rsquo;{\'e}tude de valorisation des s{\'e}diments extraits du barrage de Koudiat Medouar dans les travaux de construction},
	journal = {S{\'e}minaire International sur l{\textquoteright}ing{\'e}nierie de la construction des villes (architecture, g{\'e}nie civil, hydraulique, travaux publics, urbanisme)},
	year = {2021},
	address = {Constantine, Alg{\'e}rie },
	url = {https://univ-constantine3.dz/appel-a-communication-du-seminaire-international-sur-lingenierie-de-la-construction-des-villes/},
	author = {Benaicha, Amar Cherif and Fourar, Ali and Mansouri, Tarek}
}
@proceedings {7107,
	title = {Study Of The Solid Transport And Their Impact Of The Silting Dams},
	journal = {1er S{\'e}minaire National sur l{\textquoteright}Eau, G{\'e}otechnique et Environnement},
	year = {2021},
	address = {Mila, Algeria},
	url = {http://www.centre-univ-mila.dz/},
	author = {Benaicha, Amar Cherif and Fourar, Ali and Mansouri, Tarek}
}
@proceedings {7099,
	title = {Etude de l\&$\#$39;effet des cavit{\'e}s sur la capacit{\'e} portante de deux fondations superficielles interf{\'e}r{\'e}es reposant sur un sol granulaire},
	journal = {1{\`e}re Edition des Journ{\'e}es Internationales en G{\'e}osciences et Environnement (JIGE2021) Agadir 26-27 Mars 2021.},
	year = {2021},
	address = {Maroc},
	url = {https://www.facebook.com/100396625169861/posts/190567189486137/1905671/89486137/},
	author = {Saadi, Djamel and Boufarh, Rafik and Mansouri, Tarek and Abbeche, Khelifa}
}
@proceedings {7098,
	title = {Etude num{\'e}rique de la capacit{\'e} portante d\&rsquo;une fondation renforc{\'e}e par une colonne ballast{\'e}e confin{\'e}e par g{\'e}ogrille},
	journal = {The 2nd International Symposium on Construction Management and Civil Engineering (ISCMCE- 2021)},
	year = {2021},
	address = {Skikda, Algeria },
	url = {http://ftech.univ-skikda.dz/ISCMCE2021/},
	author = {Boufarh, Rafik and MANSOUR, T and Boursas, Farid}
}
@article {7095,
	title = {Mechanical Behavior of the Extraction Mud Dam for Use in the Manufacture of CEB},
	journal = {Civil Engineering Journal},
	volume = {7},
	number = {10},
	year = {2021},
	abstract = {
	The aim of this work is to study the mechanical behavior of the sediments extracted from the Koudiet Meddaouar, Timgad dam (Algeria), for a possible valorization in the field for building works in order to minimize this phenomenon which is currently a concern for the operators and the persons in charge of the mobilization of the water resources. This siltation therefore severely limits its storage capacity and consequently it{\textquoteright}s operating life. The extraction of the sediments accumulated in the dam{\textquoteright}s reservoir is therefore imperative, on the pain of seeing it perish in the medium term. These sediments are, however, of great geotechnical and mechanical value. The results of the tests conducted in the laboratory have enabled us to identify the different sediments from a physical and geotechnical point of view In front of the difficulties noted in the control of the silting up of the dams in Algeria, a very important quantity of silt being deposited annually in the dams. In order to achieve our objective, different mixtures of silt with or without lime treatment, cement glass fibers and powdered fibers were studied for the possible manufacture of Compressed Earth Bricks (CEB). The results obtained show that some of the mixtures present very interesting results in the different tests (compression and bending), verifying the conditions of the standards in force and thus allowing their use in the field of the manufacture of building materials.

},
	url = {https://www.civilejournal.org/index.php/cej/article/view/2980},
	author = {Benaicha, Amar Cherif and Fourar, Ali and Mansouri, Tarek and Massouh, Fawaz}
}
@article {7094,
	title = {Effects of underground circular void on strip footing laid on the edge of a cohesionless slope under eccentric loads},
	journal = {Soils and Rocks },
	volume = {44},
	number = {1},
	year = {2021},
	abstract = {
	Owing to the comeback of small-scale models, this paper presents results of an experimental study based on the effect of underground circular voids on strip footing placed on the edge of a cohesionless slope and subjected to eccentric loads. The bearing capacity-settlement relationship of footing on the slope and impact of diverse variables are expressed using dimensionless parameters such as the top vertical distance of the void from the base of footing, horizontal space linking the void-footing centre, and load eccentricity. The results verified that the stability of strip footing is influenced by the underground void, as well as the critical depth between the soil and top layer of the void. The critical horizontal distance between the void and the centre was also affected by the underground void. Furthermore, the results also verified that the influence of the void appeared insignificant when it was positioned at a depth or eccentricity equal to twice the width of footing.

},
	url = {https://www.scielo.br/j/soiroc/a/DDM3dzjk6D7RkYbF6TjbnHw/abstract/?lang=en},
	author = {Mansouri, Tarek and Boufarh, Rafik and Saadi, Djamel}
}
@article {7093,
	title = {Physico-mechanical Behaviors and Durability of Heated Fiber Concrete},
	journal = {Civil Engineering Journal},
	volume = {7},
	number = {9},
	year = {2021},
	abstract = {
	The objective of the present manuscript is to describe the impact of polypropylene fibers on the behavior of heated concrete subjected to heating and cooling cycles at temperatures of 200, 450 and 600 {\textdegree}C respectively for six hours, through a series of experimental tests on mass loss, water absorption, porosity, compressive and tensile strength. For this purpose, mixes were prepared with a water/cement ratio with the incorporation of polypropylene fibers with a rate varying from 0.5 to 1.5\%. These fibers were added in order to improve the thermal stability and to prevent the concrete from splitting. The results show that a considerable loss of strength was noticed for all tested specimens. The relative compressive strengths of the concretes containing polypropylene fibers were higher than those of the concretes without fibers. Also, a greater loss of mass of the polypropylene fibers compared to those without fibers was noticed when increasing the temperature. The flexural tensile strength of the concrete was more sensitive to elevated temperatures than the compressive strength and a rapid increase in porosity was observed for the fiber-reinforced concrete compared to the reference concrete. Furthermore, water absorption by the fibers is proportional to the fiber content of the concrete.

},
	url = {https://www.civilejournal.org/index.php/cej/article/view/2905},
	author = {Benali, Redha and Mellas, Mekki and Baheddi, Mohamed and Mansouri, Tarek and Boufarh, Rafik}
}
@article {7091,
	title = {The Proposition of an EI Equation of Square and L\&ndash;Shaped Slender Reinforced Concrete Columns under Combined Loading},
	journal = {Engineering, Technology \& Applied Science Research},
	volume = {11},
	number = {3},
	year = {2021},
	pages = {7100-7106},
	abstract = {
	The stability and strength of slender Reinforced Concrete (RC) columns depend directly on the flexural stiffness EI, which is a major parameter in strain calculations including those with bending and axial load. Due to the non-linearity of the stress-strain curve of concrete, the effective bending stiffness EI always remains variable. Numerical simulations were performed for square and L-shaped reinforced concrete sections of slender columns subjected to an eccentric axial force to estimate the variation of El resulting from the actual behavior of the column, based on the moment-curvature relationship. Seventy thousand (70000) hypothetical slender columns, each with a different combination of variables, were used to investigate the main variables that affect the EI of RC slender columns. Using linear regression analysis, a new simple and linear expression of\&nbsp;EI\&nbsp;was developed. Slenderness, axial load level, and concrete strength have been identified as the most important factors affecting effective stiffness. Finally, the comparison between the results of the new equation and the methods proposed by ACI-318 and Euro Code-2 was carried out in connection with the experimental results of the literature. A good agreement of the results was found.

},
	url = {https://www.etasr.com/index.php/ETASR/article/view/4048},
	author = {Hamzaoui, L and Bouzid, Tayeb}
}
@article {7090,
	title = {Effect of Masonry Infill Walls with Openings on Nonlinear Response of Steel Frames},
	journal = {Civil Engineering Journal},
	volume = {7},
	number = {2},
	year = {2021},
	abstract = {
	The infill walls are usually considered as nonstructural elements and, thus, are not taken into account in analytical models. However, numerous researches have shown that they can significantly affect the seismic response of the structures. The aim of the present study is to examine the role of masonry infill on the damage response of steel frame without and with various types of openings systems subjected to nonlinear static analysis and nonlinear time history analysis. For the purposes of the above investigation, a comprehensive assessment is conducted using twelve typical types of steel frame without masonry, with full masonry and with different heights and widths of openings. The results revealed that the influence of the successive earthquake phenomenon on the structural damage is larger for the infill buildings compared to the bare structures. Furthermore, when buildings with masonry infill are analyzed for seismic sequences, it is of great importance to account for the orientation of the seismic motion. The nonlinear static response indicated that the opening area has an influence on the maximal strength, the ductility and the initial rigidity of these frames. But the shape of the opening will not influence the global behavior. Then, the nonlinear time history analysis indicates that the global displacement is greatly decreased and even the behavior of the curve is affected by the earthquake intensity when opening is considered.

},
	url = {https://www.civilejournal.org/index.php/cej/article/view/2630},
	author = {Rahem, Athmane and Yahiaoui, Djarir and Lahbari, Noureddine and Bouzid, Tayeb}
}
@article {7089,
	title = {Performance Assessment of Interaction Soil Pile Structure Using the Fragility Methodology},
	journal = {Civil Engineering Journal},
	volume = {7},
	number = {2},
	year = {2021},
	abstract = {
	This study aimed to investigate whether the seismic fragility and performance of interaction soil-pile-structure (ISPS) were affected by different parameters:\&nbsp; axial load, a section of the pile, and the longitudinal steel ratio of the pile were implanted in different type of sand (loose, medium, dense). In order to better understand the ISPS phenomena, a series of nonlinear static analysis have been conducted for two different cases, namely: (i) fixed system and (ii) ISPS system, to get the curves of the capacity of every parameter for developing the fragility curve. After a comparison of the numerical results of pushover analysis and fragility curves, the results indicate that these parameters are significantly influenced on lateral capacity, ductility and seismic fragility on the ISPS. The increasing in the axial load exhibit high probabilities of exceeding the damage state. The increase in pile section and longitudinal steel ratio, the effect of probability damage (low and high) are not only related to the propriety geometrically, but also related to the values of ductility and lateral capacity of the system.

},
	url = {https://www.civilejournal.org/index.php/cej/article/view/2632},
	author = {Guettafi, Nesrine and Yahiaoui, Djarir and Abbeche, Khelifa and Bouzid, Tayeb}
}
@article {7088,
	title = {Seismic Fragility Curves for Performance of Semi-rigid Connections of Steel Frames},
	journal = {Civil Engineering Journal},
	volume = {7},
	number = {7},
	year = {2021},
	abstract = {
	A steel frame with a semi-rigid connection is one of the most widely used structural systems in modern construction. These systems are cheap to make, require less time to construct and offer the highest quality and reliable construction quality without the need for highly skilled workers. However, these systems show greater natural periods compared to their perfectly rigid frame counterparts. This causes the building to attract low loads during earthquakes. In this research study, the seismic performance of steel frames with semi-rigid joints is evaluated. Three connections with capacities of 50, 70 and 100\% of the beam{\textquoteright}s plastic moment are studied and examined. The seismic performance of these frames is determined by a non-linear static pushover analysis and an incremental dynamic analysis leading finally to the fragility curves which are developed. The results show that a decrease in the connection capacity increases the probability of reaching or exceeding a particular damage limit state in the frames is found.

},
	url = {https://www.civilejournal.org/index.php/cej/article/view/2898},
	author = {Saadi, Mohamed and Yahiaoui, Djarir and Lahbari, Noureddine and Bouzid, Tayeb}
}
@proceedings {7119,
	title = {Numerical Investigation of Shallow Twin Tunnels Interaction in Soft GroundNumerical Investigation of Shallow Twin Tunnels Interaction in Soft Ground},
	journal = {ITA-AITES World Tunnel Congress, WTC2020 and 46th General Assembly Convention Centre, 11-17 September,},
	year = {2020},
	address = {Kuala Lumpur, Malaysia},
	author = {Zerdia, M and Demagh, Rafik}
}
@article {7115,
	title = {Volumetric behavior of natural swelling soil on drying-wetting paths. Application to the Boumagueur marl -Algeria},
	journal = {Studia Geotechnica et Mechanica},
	volume = {42},
	number = {3},
	year = {2020},
	pages = {248 - 262},
	abstract = {
	This article presents the results of experimental work carried out both in situ (coring; pressuremeter test) and in the laboratory (drying-wetting and oedometric tests) to describe the volumetric behavior on drying-wetting path of a swelling clayey soil of eastern Algeria. In order to perform drying-wetting tests the osmotic technique and saturated salts solutions were used. These suction-imposed methods have gained widespread acceptance as reliable methods for imposing suction on soil specimens. They allowed to sweep a wide range of suctions between 0 and 500 MPa. The ability to impose suction on soil specimens allows for drying and wetting stress paths to be applied to evaluate resulting changes in state parameters (void ratio, degree of saturation and water content). These paths were carried out on specimens with different initial states. Slurries of soil were used to characterize the reference behavior, while the undisturbed soil samples allow to describe the behavior of material under in situ conditions. In the last part of this article and to specify the behavior observed in the saturated domain, a comparison between the resulting deformations of the drying-wetting test and those resulting from the oedometric test was made.

},
	url = {https://sciendo.com/es/article/10.2478/sgem-2019-0042},
	author = {Mebarki, Mehdi and Kareche, Toufik and Benyahia, Sabah and Derfouf,  Feth-Ellah Mounir and Abou-Bekr, Nabil and Taibi, Said}
}
@article {7114,
	title = {Effect of Long-Term Soil Deformations on RC Structures Including Soil-Structure Interaction },
	journal = {Civil Engineering Journal},
	volume = {6},
	number = {12},
	year = {2020},
	abstract = {
	Lifetime service of Reinforced Concrete (RC) structures is of major interest. It depends on the action of the superstructure and the response of soil contact at the same time. Therefore, it is necessary to consider the soil-structure interaction in the safety analysis of the RC structures to ensure reliable and economical design. In this paper, a finite element model of soil-structure interaction is developed. This model addresses the effect of long-term soil deformations on the structural safety of RC structures. It is also applied to real RC structures where soil-structure interaction is considered in the function of time. The modeling of the mechanical analysis of the soil-structure system is implemented as a one-dimensional model of a spring element to simulate a real case of RC continuous beams. The finite element method is used in this model to address the nonlinear time behavior of the soil and to calculate the consolidation settlement at the support-sections and the bending moment of RC structures girders. Numerical simulation tests with different loading services were performed on three types of soft soils with several compressibility parameters. This is done for homogeneous and heterogeneous soils. The finite element model of soil-structure interaction provides a practical approach to show and to quantify; (1) the importance of the variability of the compressibility parameters, and (2) the heterogeneity soil behavior in the safety RC structures assessment. It also shows a significant impact of soil-structure interaction, especially with nonlinear soil behavior versus the time on the design rules of redundant RC structures.

},
	url = {https://www.civilejournal.org/index.php/cej/article/view/2489},
	author = {Bezih, Kamel and Chateauneuf, Alaa and Demagh, Rafik}
}
@article {7113,
	title = {Improvement of a Hypoplastic Model for Granular Materials under High Confining Pressures},
	journal = {Geotechnical and Geological Engineering},
	volume = {38},
	year = {2020},
	pages = {3761{\textendash}3771},
	abstract = {
	The behavior of granular materials during loading depends on the level of stresses. When confining pressure increases, the peak shear strength, the residual shear strength and the stiffness gradually decrease; besides, the volumetric behavior is shown to be influenced by the stress level. In this paper, such effects, due to changes in stress levels, have been incorporated into a modified von Wolffersdorff hypoplastic model. For this purpose, reference void ratios and exponent α and β, the parameters of the original hypoplastic model are modified using experimental data. The performance of the proposed model is demonstrated by using simulated triaxial tests on Hostun sand with cell pressures up to 15\&nbsp;MPa. The study shows the ability of the improved model to highlight the behavior characteristics of granular materials in dilatancy and (peak) resistance under high stress better than the original model.

},
	url = {https://link.springer.com/article/10.1007/s10706-020-01256-y},
	author = {Amrane, Moussa and Messast, Salah and Demagh, Rafik}
}
@article {7112,
	title = {Structural Behavior of Pipelines Buried in Expansive Soils under Rainfall Infiltration (Part I: Transverse Behavior)},
	journal = {Civil Engineering Journal},
	year = {2020},
	abstract = {
	Landslides, fault movements as well as shrink/swell soil displacements can exert important additional loadings on soil buried structures such as pipelines. These loadings may damage the buried structures whenever they reach the strength limits of the structure material. This paper presents a two-dimensional plane-strain finite element analysis of an 800 mm diameter water supply pipeline buried within the expansive clay of the Ain-Tine area (Mila, Algeria), considering the unsaturated behavior of the soil under a rainfall infiltration of 4 mm/day intensity and which lasts for different time durations (8, 15 and 30 days). The simulations were carried out using the commercial software module SIGMA/W and considering different initial soil suction conditions P1, P2, P3 and P4. The soil surface heave and the radial induced forces on the pipeline ring (i.e., Axial , Shear \&nbsp;forces and bending moments ) results indicated that following the changes of suction the rainfall infiltration can cause considerable additional loads on the buried pipeline. Moreover, these loads are proportionally related to the initial soil suction conditions as well as to the rainfall infiltration time duration. The study highlighted that the unsaturated behavior of expansive soils because of their volume instability are very sensitive to climatic conditions and can exert adverse effects on pipelines buried within such soils. As a result, consistent pipeline design should seriously consider the study of the effect of the climatic conditions on the overall stability of the pipeline structure.

},
	url = {https://civilejournal.org/index.php/cej/article/view/2402},
	author = {Bouatia, Mohammed and Demagh, Rafik and Derriche, Zohra}
}
@proceedings {7097,
	title = {Experimental model to assess the bearing capacity of inclined loaded foundation near slope},
	journal = {3rd Conference of the Arabian Journal of Geosciences (CAJG), held online, on 2-5 November},
	year = {2020},
	address = {Tunis},
	url = {https://cajg.org/},
	author = {MANSOUR, T and Boufarh, Rafik and SAAD, D}
}
@article {7092,
	title = {Inelastic Response of Soil-Pile-Structure Interaction System under Lateral Loading: A Parametric Study},
	journal = {Jordan Journal of Civil Engineering},
	volume = {14},
	number = {2},
	year = {2020},
	abstract = {
	Soil-structure interaction is the key to study the behavior of structures under static or dynamic loading. The pile foundation is adopted to transfer loads from the structure to the soil when the structure is embedded in a weak soil stratum. Soil-pile system has a nonlinear behavior; thus, it is more complicated to understand. This study focuses on the numerical investigation of interaction of soil{\textendash}pile{\textendash}structure system (ISPS) and interaction of soil{\textendash}pile system (ISP) under lateral loads. Nonlinear static analysis is carried out considering the lateral capacity of ISPS and ISP systems under lateral loading using pushover analysis. A parametric study concerning different types of axial loading, pile length and pile radius, as well as longitudinal steel ratio in different types of sand is conducted to observe the response of (ISPS) and (ISP) systems. Besides that, lateral capacity deflection and moment curves, as well as the formation of plastic hinge are evaluated for ISPS and ISP systems for a typical pile and various soil types and their results are presented. The results show that the lateral capacity is influenced by the parametric study.

},
	url = {https://www.proquest.com/openview/e6a219962ff26b777d51985cc50d6fd3/1?pq-origsite=gscholar\&cbl=2035891},
	author = {Sekhri, Khadidja and Yahiaoui, Djarir and Abbeche, Khelifa}
}
@proceedings {7710,
	title = {The effect of  prepared sand on the physico-mecanical properties of self compacting concrete (SCC)},
	journal = {International Conference on   Technology, Engineering and Sciences, (IConTES) },
	year = {2019},
	address = {~Antalya, Turkey},
	author = {Bouglada, Mohamed-salah and Noui , Ammar and Belagraa, Larbi}
}
@article {7702,
	title = {Characterization and modelling of the rheological behaviour of blended cements based on mineral additions},
	journal = {European Journal of Environmental and Civil Engineering},
	volume = {25},
	number = {4},
	year = {2019},
	pages = {655-672 },
	abstract = {
	This paper presents an experimental study to evaluate the effect of local mineral additions (pozzolan, slag and limestone) on the rheological behaviour of based cement binder{\textquoteright}s pastes. The binary, ternary and quaternary binder pastes were prepared with the partial clinker cement replacement limited up to 20\%, according with type CEM II specifications. The cements were characterized by their geometric shapes, the reactivity and the chemical composition. An experimental design plan was used to modelling the rheological behaviour of pastes. The relatives yield stress and plastic viscosity of binder{\textquoteright}s pastes, with normal consistency, were determined. The results showed that all the tested compositions with additions follow the same rheological behaviour law according to the Bingham model. The binder pastes rheological parameters (yield stress and viscosity) are affected by mineral additions. The highest values of the rheological parameters were measured in binary and ternary cements with limestone and pozzolan. On the other hand, the lower viscosity among the tested pastes was obtained with slag addition. The statistical approach allowed us to obtain a satisfactory modelling of viscosity and yield stress with a coefficient of determination\&nbsp;R2 = 0.91 and 0.92, respectively and a satisfactory correlation between the viscosity and the water/binder ratio (W/B) for a normal consistency with a coefficient of determination\&nbsp;R2 = 0.91.

},
	url = {https://www.tandfonline.com/doi/abs/10.1080/19648189.2018.1539675},
	author = {Bouglada, Mohamed-salah and Naceri, abdelghani and Behhedi, Mohamed and Pereira-de-Oliveira, Luiz}
}
@article {7701,
	title = {STUDY OF THE MECHANICAL BEHAVIOR AND DURABILITY OF MORTARS BASED ON PREPARED SAND},
	journal = {Mining science},
	volume = {27},
	year = {2019},
	pages = {47{\textendash}59},
	abstract = {
	Sand occupies a great proportion of the cementitious matrix product and in particular mortars. Hence, the study of fine aggregates used for concrete and mortar in general, deserves to be objects of research including sand which has always been considered as inert material, whose role is exclusively physical. The study of mortars performances based on prepared sand to assess the effect of the type and rate of substitution of mineral additions pozzolana and blast furnace slag of a natural sand fine fraction (sieve diameter less than 0.16 mm) is seen as the main objective of the present experimental research work. The natural sand replaced size is less than 160 {\textmu}m and for rheological reasons the maximum replacement rate of natural sand is limited to 10\%. The results obtained show a significant improvement of the mechanical properties for the mortars based on the new activated sand. With regard to durability tests of HCl and H2SO4 acids chemical attacks, the substitution of the quartz by active mineral additions in the sand-size skeleton allows an advantageous reduction in loss of resistance up to 50\% and a mass gain around 75\%.

},
	author = {Noui , Ammar and Bouglada, Mohammed_Salah and Belagraa, Larbi and Achour, Yacine and Abderazak, Bouzid}
}
@proceedings {7134,
	title = {{\'E}valuation de mod{\'e}les de sol constitutifs pour la pr{\'e}vision des mouvements caus{\'e}s par une excavation profonde dans les sables},
	journal = {First International Congress on Advances in Geotechnical Engineering and Construction Management (ICAGECM{\textquoteright}19), 9-10 December },
	year = {2019},
	address = {Skikda, Algeria},
	author = {Amrane, Moussa and Messast, Salah and Bezih, Kamel}
}
@proceedings {7133,
	title = {Analyse m{\'e}cano-fiabiliste des structures en b{\'e}ton arm{\'e} en tenant compte de l\&$\#$39;interaction sol-structure},
	journal = {First International Congress on Advanced Geotechnical Engineering and Construction Management (ICAGECM{\textquoteright}19), 9-10 December },
	year = {2019},
	address = {Skikda, Algeria},
	author = {Bezih, Kamel and Demagh, Rafik and Amrane, Moussa}
}
@proceedings {7132,
	title = {Analyse Num{\'e}rique 3D de l\&rsquo;Interaction de Tunnels Jumeaux Investigation des Cuvettes Transversales},
	journal = {First International Congress on Advanced Geotechnical Engineering and Construction Management (ICAGECM{\textquoteright}19), 9-10 December },
	year = {2019},
	address = {Skikda, Algeria},
	url = {http://ftech.univ-skikda.dz/icagecm19/},
	author = {Zerdia, M and Demagh, Rafik}
}
@proceedings {7131,
	title = {Effect of the initial soil suction on Structures Buried in an Expansive Soil during a Rainfall Infiltration Case of Aine-Tine pipeline},
	journal = {First International Congress on Advanced Geotechnical Engineering and Construction Management (ICAGECM{\textquoteright}19), 9-10 December },
	year = {2019},
	address = {Skikda, Algeria},
	author = {Bouatia, Mohammed and Demagh, Rafik}
}
@proceedings {7125,
	title = {Surface settlement induced by shield tunneling\&ndash;complete 3D numerical simulation on two case studies},
	journal = {The WTC 2019 ITA-AITES World Tunnel Congress (WTC 2019), May 3-9,},
	year = {2019},
	address = {Naples, Italy},
	url = {https://www.crcpress.com/Tunnels-and-Underground-Cities-Engineering-and-Innovation-Meet-Archaeology/Peila-Viggiani-Celestino/p/book/9781138388659},
	author = {Beghoul, M and Demagh, Rafik}
}
@proceedings {7124,
	title = {The Effect of Rainfall Infiltration on Structures Buried in an Expansive Soil: The Case of Aine-Tine Water Supply Pipeline (Algeria)},
	journal = {Proceedings of the Arabian Journal of Geosciences (CAJG), November 25-28, },
	year = {2019},
	address = {Sousse,Tunisia},
	url = {Springer-Nature. https://www.cajg.org/. (Accepted paper for poster session)},
	author = {Bouatia, M and Demagh, R and Derriche, Z}
}
@proceedings {7123,
	title = {Analysis of Ground Surface Settlement Induced By Shield Tunneling in Soft Soils},
	journal = {Proceedings of Underground Construction, June 3-5, },
	year = {2019},
	address = {Prague-Tch{\'e}quie},
	url = {https://www.ucprague.com/},
	author = {Beghoul, M and Demagh, Rafik}
}
@proceedings {7122,
	title = {Prediction of surface trough due to shield tunnelling},
	journal = {The XVII European Conference on Soil Mechanics and Geotechnical Engineering, 1-6 September,},
	year = {2019},
	address = {Reykjavik, Iceland},
	abstract = {
	In this study, the surface settlement induced by shield TBM excavation is simulated by using finite differences code Flac-3D. The proposed three dimensional simulation procedure is taking into account the main features of slurry shield TBM. The line D subway project in Lyon is chosen to validate the numerical simulations. The comparison of the numerical simulation results with the in-situ measurements shows that the proposed 3D simulation is relevant, in particular in the adopted representation for the different operations achieved by the tunnel boring machine.

},
	url = {https://www.ecsmge-2019.com/uploads/2/1/7/9/21790806/proceedings-v1a.pdf.},
	author = {Beghloul, Mohammed and Demagh, Rafik}
}
@article {7118,
	title = {Hydromechanical behavior of a natural swelling soil of Boumagueur region (east of Algeria)},
	journal = {Geomechanics and Engineering},
	volume = {17},
	number = {1},
	year = {2019},
	pages = {69-79},
	abstract = {
	This work presents an experimental study of the hydromechanical behavior of a natural swelling soil taken from Boumagueur region east of Algeria. Several pathological cases due to the soil shrinkage / swelling phenomenon were detected in this area. In a first part, the hydric behavior on drying-wetting paths was made, using the osmotic technics and saturated salts solutions to control suction. In The second part, using a new osmotic oedometer, the coupled behavior as a function of applied stresses and suction was investigated. It was shown that soil compressibility parameters was influenced by suction variations that an increase in suction is followed by a decrease in the virgin compression slope. On the other hand, the unloading slope of the oedometric curves was not obviously affected by the imposed suction. The decrease in suction strongly influences the apparent preconsolidation pressure, ie during swelling of the samples after wetting.

},
	url = {http://koreascience.or.kr/article/JAKO201911338888572.page},
	author = {Mebarki, Mehdi and Kareche, Toufik and Derfouf,  Feth-Ellah Mounir and Taibi, Said and Abou-Bekr, Nabil}
}
@article {7117,
	title = {Slurry Shield Tunneling in Soft Ground-Comparison between Field Data and 3D Numerical Simulation},
	journal = {Studia Geotechnica et Mechanica},
	volume = {41},
	number = {3},
	year = {2019},
	pages = {115 - 128},
	abstract = {
	In urban areas, the control of ground surface settlement is an important issue during shield tunnel-boring machine (TBM) tunneling. These ground movements are affected by many machine control parameters. In this article, a finite difference (FD) model is developed using Itasca FLAC-3D to numerically simulate the whole process of shield TBM tunneling. The model simulates important components of the mechanized excavation process including slurry pressure on the excavation face, shield conicity, installation of segmental lining, grout injection in the annular void, and grout consolidation. The analysis results from the proposed method are compared and discussed in terms of ground movements (both vertical and horizontal) with field measurements data. The results reveal that the proposed 3D simulation is sufficient and can reasonably reproduce all the operations achieved by the TBM. In fact, the results show that the TBM parameters can be controlled to have acceptable levels of surface settlement. In particular, it seems that moderate face pressure can reduce ground movement significantly and, most importantly, can prevent the occurrence of face-expected instability when the shield crosses very weak soil layers. The shield conicity has also an important effect on ground surface settlement, which can be partly compensated by the grout pressure during tail grouting. Finally, the injection pressure at the rear of the shield significantly reduces the vertical displacements at the crown of the tunnel and, therefore, reduces the settlement at the ground surface.

},
	url = {https://sciendo.com/it/article/10.2478/sgem-2019-0003},
	author = {Beghoul, Mohammed and Demagh, Rafik}
}
