International Journal of Geomechanics: Recent submissions
Now showing items 2221-2240 of 4049
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Underdip Toppling Failure Mechanism: Case Study Retrospective Analysis and Its Most Determinant Parameters
(American Society of Civil Engineers, 2019)The underdip toppling failure (UTF) mechanism in rock slopes with a set of discontinuities is analyzed in this study. Various perspectives from the most relevant authors are examined to understand the behavior of this ... -
Instability of Particulate Assemblies under Constant Shear Drained Stress Path: DEM Approach
(American Society of Civil Engineers, 2019)The discrete element method (DEM) is applied to investigate instability of frictional particulate assemblies sheared under the triaxial constant shear drained (CSD) condition. The instability in loose samples occurs in the ... -
Numerical Simulation of Geosynthetic Clay Liner Desiccation under High Thermal Gradients and Low Overburden Stress
(American Society of Civil Engineers, 2019)A multiphase, thermohydro-mechanical model of unsaturated soils is presented to assess the risk of desiccation of a geosynthetic clay liner (GCL) in a composite lining system (i.e., a high-density polyethylene geomembrane ... -
Micromechanical Particle Interactions in Railway Ballast through DEM Simulations of Direct Shear Tests
(American Society of Civil Engineers, 2019)Particle shape properties can significantly affect the load response behavior and field performance of the uniformly graded ballast layer in railway track structures. Particle contact and the related micromechanical behavior ... -
Analytical Solution for Axisymmetric Active Earth Pressure Based on the Characteristics Method considering Orthoradial Geometric Condition
(American Society of Civil Engineers, 2019)The current analytical solutions for axisymmetric active earth pressure are based on certain hypothetical relationships between the circumferential stress, the average stress of the meridional plane, and the main shear ... -
Dilatancy Equation for Rockfill Materials under Three-Dimensional Stress Conditions
(American Society of Civil Engineers, 2019)The intermediate principal stress ratio b has a significant influence on the dilatancy behaviors of rockfill materials. The dilatancy equation is defined as a function of the dilatancy dg and the stress ratio η. To investigate ... -
Sensitivity Analysis of Loess Stability to Physical and Mechanical Properties: Assessment Model
(American Society of Civil Engineers, 2019)Due to their low strength, high compressibility, and collapsibility, loess deposits are susceptible to large deformation and landslides during tunneling. An objective, scientific approach to stability assessment is urgently ... -
Assessment of Horizontal Seismic Coefficient for Three Different Types of Reinforced Soil Structure Using Physical and Analytical Modeling
(American Society of Civil Engineers, 2019)Pseudo-static analysis is one of the most common and simplest approaches used to assess the seismic stability of reinforced-soil retaining walls. Despite the importance of the equivalent seismic coefficient as the key ... -
Factor of Safety of Geosynthetic-Reinforced Slope in Unsaturated Soils
(American Society of Civil Engineers, 2019)Matric suction tends to exert important effects on the stability of geosynthetic-reinforced soil slopes; however, it is usually neglected in the previously published literature. To quantitatively evaluate the increment in ... -
Stability of Unsaturated Soil Slopes with Cracks under Steady-Infiltration Conditions
(American Society of Civil Engineers, 2019)Most classical approaches for evaluating the stability of soil slopes with tension cracks are performed under dry and/or saturated conditions. The suction-induced effect of unsaturated soils is generally neglected in ... -
Analysis of Rayleigh Waves in Micropolar Thermoelastic Solid over a Dual-Phase-Lag Semi-Infinite Thermoelastic Substrate under Interfacial Imperfections
(American Society of Civil Engineers, 2019)The study unfurls the analysis of interfacial imperfections on Rayleigh waves transmitting through micropolar thermoelastic solid without energy dissipation over a semi-infinite isotropic thermoelastic solid in context of ... -
Effect of Interface Friction Angle between Soil and Reinforcement on Bearing Capacity of Strip Footing Placed on Reinforced Slope
(American Society of Civil Engineers, 2019)In the last few decades, many experimental and a few numerical investigations were performed to investigate the behavior of strip footing placed on the soil slope. However, most of the previous studies were case specific. ... -
Long-Term Response of Consolidating Soft Clays around a Pile considering Non-Darcian Flow
(American Society of Civil Engineers, 2019)In this study, a nonlinear one-dimensional consolidation equation in terms of excess pore pressure is developed by considering the effects of variable permeability and non-Darcian flow condition. Uncoupled analysis for the ... -
Evaluation of Critical Slip Surface in Limit Equilibrium Analysis of Slope Stability by Smoothed Particle Hydrodynamics
(American Society of Civil Engineers, 2019)Limit equilibrium methods (LEMs) have been widely used for slope stability analysis in engineering practice. The critical slip surface in LEM, which has the minimum factor of safety (FS), is often assumed as the most likely ... -
Interaction between Railroad Ballast and Sleeper: A DEM-FEM Approach
(American Society of Civil Engineers, 2019)This study proposed a coupling discrete-element method–finite-element method (DEM-FEM) to investigate the ballast–sleeper interaction under dynamic loading. A surface-coupling algorithm was used to combine the finite-element ... -
Scalar- and Vector-Valued Fragility Analyses of Gravity Quay Wall on Liquefiable Soil: Example of Kobe Port
(American Society of Civil Engineers, 2019)The crucial role of intensity measure (IM) selection in the seismic fragility analysis of gravity quay walls is demonstrated in this paper. Scalar- and vector-valued fragility functions are presented for seismic vulnerability ... -
Vector-Sum Method for 2D Slope Stability Analysis Considering Vector Characteristics of Force
(American Society of Civil Engineers, 2019)The vector-sum method (VSM) is advanced by considering the vector characteristics. As a cost of this advantage, a predefined global sliding direction is required, which has been a key issue for the application of the VSM. ... -
Discrete-Element Simulation of Scaling Effect of Strain Localization in Dense Granular Materials
(American Society of Civil Engineers, 2019)This paper presents a discrete-element method (DEM) study of the scaling effect of strain localization in dense sand. We used disc particles and clump particles to generate specimens for biaxial compression tests, and we ... -
Behavior and Numerical Evaluation of Cement-Fly Ash-Gravel Pile-Supported Embankments over Completely Decomposed Granite Soils
(American Society of Civil Engineers, 2019)This study presents a full-scale test of high-speed railway embankments to investigate the performance of cement-fly ash-gravel (CFG) pile-supported embankments over completely decomposed granite (CDG) soil foundations. ... -
Limit Equilibrium Analysis of Slope Stability with Coupling Nonlinear Strength Criterion and Double-Strength Reduction Technique
(American Society of Civil Engineers, 2019)Currently, the strength parameters are reduced by a uniform coefficient for the traditional strength-reduction technique in the slope stability analysis. However, observations proved that the contributions of the strength ...