International Journal of Geomechanics: Recent submissions
Now showing items 2001-2020 of 4049
-
Numerical Investigation of Sequential Strut Failure on Performance of Deep Excavations in Soft Soil
(ASCE, 2020)The structural support system is the key element in the design of any deep excavations, in particular, in difficult ground conditions, and an adequate safety margin is required to cover uncertainties inherent in geotechnical ... -
Perturbation Intensity and Mesh Convergence in Coupled Undrained Instability Analysis in Sands under Biaxial Loading
(ASCE, 2020)The influence of perturbation magnitude and extent of area on the emergence of localized instability in sand specimens subjected to biaxial loading has been explored within a numerical framework using a generalized 3D ... -
Unraveling the Progressive Failure Behaviors and Mechanisms of the Slope with a Local Dynamic Method Based on the Double Strength Reduction
(ASCE, 2020)The cohesion c and the internal friction angle φ are mobilized at different reduction proportions and attenuation rates when a slope is in progressive failure, which is a dynamic development process. For this reason, an ... -
Modeling the Effects of Internal Erosion on the Structural Damage of a Shield Tunnel
(ASCE, 2020)This study investigated the soil–structure interaction and structural damage of a shield tunnel during construction caused by the internal erosion of the sandy ground. A numerical approach was proposed to qualitatively ... -
Strength, Permeability, and Micromechanisms of Industrial Residue Magnesium Oxychloride Cement Solidified Slurry
(ASCE, 2020)The solidification of construction waste slurry draws much attention today due to the increasing awareness of environmental protection. Magnesium oxychloride cement (MOC) was first incorporated to solidify slurry in ... -
Numerical and Experimental Analysis of Lateral Resistance of Biblock Sleeper on Ballasted Tracks
(ASCE, 2020)In this study, a series of single-tie push tests were performed on biblock and monoblock sleepers on a test track. In these tests, the variation of shoulder height and shoulder width has been considered as effective ... -
Effect of Hysteresis on the Critical State Behavior of an Unsaturated Silty Soil
(ASCE, 2020)In this paper the effect of hysteresis on the critical state behavior of unsaturated soils is investigated through conducting a number of controlled suction triaxial tests on samples of an unsaturated silty soil. The slurry ... -
Borehole Cross-Sectional Shape Analysis under in Situ Stress
(ASCE, 2020)The stress relief method is currently one of the most commonly used in situ stress measurement methods, and its basic measurement principle is the relationship between borehole deformation and in situ stress. The research ... -
Calibration of Microscopic Penalty Parameters in the Combined Finite–Discrete-Element Method
(ASCE, 2020)With unique advantages in simulating solid fracture, the combined finite–discrete-element method has become increasingly popular in the rock mechanics field. Nevertheless, a large number of microscopic parameters in the ... -
Field and Numerical Investigation of High Wall Stability with Thin, Steeply Dipping Strata in an Underground Powerhouse
(ASCE, 2020)This paper reports a case of a large-scale underground powerhouse whose high wall faces a significant stability problem owing to the presence of thin-layered, steeply dipping strata. The local failures are widely distributed ... -
Novel Approach to Determine Soil–Water Retention Surface
(ASCE, 2020)Models have been developed to represent soils, thereby establishing the unsaturated soil theory. Accurate models include physical deductions based on soil properties. The soil–water retention surface (SWRS) represents the ... -
Coupled Effect of Expanded Polystyrene and Geogrid on Load Reduction for High-Filled Cut-and-Cover Tunnels Using the Discrete-Element Method
(ASCE, 2020)High-filled cut-and-cover tunnels (HFCCTs) can be used to reclaim usable land due to the unique landforms in western China. The load reduction methods used to reduce the earth pressure on such cut-and-cover tunnels (CCTs) ... -
Pore Morphology, Porosity, and Pore Size Distribution in Kaolinitic Remolded Clays under Triaxial Loading
(ASCE, 2020)This work aims to investigate the micropore properties of saturated kaolin subjected to triaxial loading. Consolidated drained triaxial compression tests were conducted on both normally consolidated and overconsolidated ... -
New Calculating Approach for the Ultimate Bearing Capacity of a Shallow Foundation
(ASCE, 2020)The conventional method for calculating the bearing capacity is the method derived by Terzaghi, in which the embedment is simulated as a surface surcharge. The total bearing capacity is determined with two different failure ... -
Stabilization Effect of Anionic Polyacrylamide on Marine Clay Treated with Lime
(ASCE, 2020)Marine clays often need improvements before construction and how to stabilize such kind of soft soil has been a great challenge. To address this issue, a newly proposed additive, which is named anionic polyacrylamide (APAM), ... -
Process Simulation and Mesoscopic Analysis of Rockfill Dam Compaction Using Discrete Element Method
(ASCE, 2020)To investigate the mesoscopic mechanism of rockfill dam material compaction, the discrete element method is used to simulate the entire compaction process. An irregular aggregate model is first established using laser ... -
Finite-Element Studies on Factors Influencing the Response of Underground Tunnels Subjected to Internal Explosion
(ASCE, 2020)The role of underground metro tunnels in a modern urban society is indispensable. Nowadays, these populous metro tunnel networks are becoming a prime target for terror strikes around the world. Considering these terror ... -
Response of Piles in Multilayers of Soil under Uplift Forces
(ASCE, 2020)A new methodology is introduced to determine the mobilized pile response under axial tension forces in a soil profile with multilayers of sand and/or clay. The proposed model allows the assessment of the load transfer (t–z) ... -
Revisiting Seismic Active/Passive Earth Pressure in Nonuniform Cohesive–Frictional Backfill
(ASCE, 2020)A limit analysis of rigid retaining walls is presented to predict active/passive earth pressures for a flat backfill with a linear Mohr-Coulomb (MC) and nonlinear power-law yield criterion under seismic effect. The ... -
Active Earth Pressure on Rigid Retaining Walls Built Near Rock Faces
(ASCE, 2020)Rock faces prevent adequate calculation of the active earth pressure of retaining wall near rock faces via the Coulomb and Rankine theories. The research is based on differential slice method and soil arching; it proposes ...