International Journal of Geomechanics: Recent submissions
Now showing items 1881-1900 of 4049
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Numerical Investigation of the Elastic Properties of Binary Mixtures as a Function of the Size Ratio and Fines Content
(ASCE, 9/1/2020 1)This paper examines the influences of the size ratio and fines content on Young's modulus and the shear modulus of binary mixtures using the discrete element method. The moduli were gained by numerical simulations of drained ... -
Experimental and Numerical Study on Ballast Flakiness and Elongation Index by Direct Shear Test
(ASCE, 10/1/2020 )The cube is considered the best shape for high-quality ballast aggregates. However, the presence of flaky and elongated aggregates (misshapen particles) caused during ballast production is unavoidable. In this regard, the ... -
Fluid Flow through Natural Single-Rock Fractures: Experimental and Numerical Investigations
(ASCE, 10/1/2020 )Fluid flow through three natural single rough-rock fractures were measured at different normal stresses. The surface height of both halves of each of these fractures was measured with and without solidified Wood's metal ... -
Rockfill Particle Breakage Generated by Wetting Deformation under the Complex Stress Path
(ASCE, 10/1/2020 )Wetting deformation of the rockfill material, which is generated by particle sliding, breakage, and rearrangement, plays a vital role in earth-rockfill dam deformation that determines the safety of the dam. However, the ... -
Estimation of Transient Forces in Single Pile Embedded in Liquefiable Soil
(ASCE, 9/1/2020 1)During the transient phase of liquefaction, i.e., from the onset of liquefaction to the stage of full liquefaction of soil, intrinsic properties of a soil–pile–structure system change causing a significant modification of ... -
Aseismic Performance Analysis of Composite Lining Embedded in Saturated Poroelastic Half Space
(ASCE, 9/1/2020 1)Earthquakes have been found to seriously threaten the structure of tunnels. To study the seismic performance of a composite lining embedded in a saturated poroelastic half space under an incident P wave, an analytical model ... -
Seismic Stability of a Broken-Back Retaining Wall Using Adaptive Collapse Mechanism
(ASCE, 9/1/2020 1)In this study, the pertinence of a broken-back retaining wall with bilinear backface in mitigating the effect of earthquake is demonstrated using the method of stress characteristics coupled with the pseudodynamic approach. ... -
Semianalytical Solution for Evaluating Viscoelastic Consolidation of Saturated Soils with Overlying Dry Layers
(ASCE, 9/1/2020 1)Saturated soils with overlying dry layers are frequently encountered in geotechnical engineering. In urban construction works, the underground water level is usually influenced by the extraction of water or complex fluid ... -
Semianalytical Solution for General Active Earth Pressure Considering the Coupling and Dilatation
(ASCE, 9/1/2020 1)Rankine pressure involves the special case of active earth pressure and merely considers the influence of the internal friction angle; however, the analytical solution for the general case involving a rough retaining wall, ... -
Analysis of Deformation and Degradation of Fouled Ballast: Experimental Testing and DEM Modeling
(ASCE, 9/1/2020 1)The deformation and degradation of fouled ballast have been examined by large-scale triaxial tests and discrete element modeling (DEM) to understand how clay fouling changes the shear strength and micromechanical aspects ... -
A Coupled CFD–DEM Approach to Examine the Hydraulic Critical State of Soil under Increasing Hydraulic Gradient
(ASCE, 9/1/2020 1)Increasing hydraulic gradients and associated seepage in a soil foundation accompanied by a reduction in effective stress, degradation of soil stiffness, and diminished internal stability contribute to adverse conditions ... -
Experimental Study on Shear Behavior and a Revised Shear Strength Model for Infilled Rock Joints
(ASCE, 9/1/2020 1)To better understand the shear behavior of infilled rock joints with standard joint roughness coefficient (JRC) profiles, direct shear experiments are performed on sand and clay infilled joints prepared by reproducing the ... -
Seismic Analysis of Retaining Wall Subjected to Surcharge: A Modified Pseudodynamic Approach
(ASCE, 9/1/2020 1)The rise in failure of retaining walls subjected to dynamic loads is of increasing concern in earthquake-prone areas. The purpose of this study is to establish a closed-form solution for seismic active thrust and its ... -
Experimental Study of Fracture Toughness and Subcritical Crack Growth of Three Rocks under Different Environments
(ASCE, 8/1/2020 1)This paper investigates fracture toughness and subcritical crack growth of marble, lherzolite, and amphibolite under different environments aiming to better understand the effect of environment, especially the acidic ... -
Investigation on the Behavior of Stiffened Caisson Installation in Uniform Clay from Large Deformation Modeling
(ASCE, 9/1/2020 1)Suction caissons, widely applied in offshore engineering, suffer from significant uncertainties about the flow mechanism of the surrounding soil during installation, especially for caissons with ring stiffeners. Large ... -
Influences of the Height to Diameter Ratio on the Failure Characteristics of Marble under Unloading Conditions
(ASCE, 9/1/2020 1)Failure characteristics of rocks under different loading and unloading conditions have been an important subject of laboratory tests. This study aims to investigate the influence of the height to diameter (H/D) ratio on ... -
Failure Process of a Single Stone Column in Soft Soil beneath Rigid Loading: Numerical Study
(ASCE, 8/1/2020 1)The discrete element method–finite difference method (DEM--FDM) numerical simulation was conducted to investigate the failure process and the bearing mechanism of the single stone column in soft soil beneath rigid loading. ... -
Prediction and Evaluation of Grain Size-Dependent Maximum Dry Density for Gravelly Soil
(ASCE, 9/1/2020 1)Although the influence of gradation on soil properties has been recognized, the grain sizes have not yet been fully considered in maximum dry density (MDD) evaluation and prediction. This study explores the impacts of full ... -
Coupled Seepage and Stress Model and Experiment Verification for Creep Behavior of Soft Rock
(ASCE, 9/1/2020 1)The creep of soft rocks induced by seepage-stress coupling is one of the critical factors that causes the failure of the rock. However, the actual failure mechanisms of soft rocks, particularly during the accelerated creep ... -
Void Ratio–Dependent Water Retention Model for a Deformable Residual Clay
(ASCE, 8/1/2020 1)Pressure plate extractor tests were performed on a residual clay soil over three drying–wetting cycles. An adjustment of a soil internal structure, caused by the change in the stress and suction path, affects the soil–water ...