International Journal of Geomechanics: Recent submissions
Now showing items 2061-2080 of 4049
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Laboratory Observation of Spalling Process Induced by Tangential Stress Concentration in Hard Rock Tunnel
(ASCE, 2020)A series of laboratory experiments were carried out to study the tangential stress concentration–induced spalling failure process of rock in an arch-shaped tunnel model under plane-strain loading condition by considering ... -
Centrifuge Model Testing of Loess Landslides Induced by Excavation in Northwest China
(ASCE, 2020)Excavation leads to unloading rebound and stress redistribution in the soil of a slope near the excavation face. The process of reequilibrium of the stress is followed by large deformation or even failure of the slope. In ... -
Poroelastoplastic Borehole Modeling by Tangent Stiffness Matrix Method
(ASCE, 2020)The stability of borehole is a major concern in petroleum and geotechnical engineering. Subsurface fossil fuel and thermal energy extraction, deep geologic carbon/energy storage, and waste disposal require sophisticated ... -
Experimental Investigation of Anisotropic Wear Damage for Natural Joints under Direct Shearing Test
(ASCE, 2020)The anisotropic morphology of natural joints always affects their shear behavior. This experimental study aimed at exploring the anisotropic wear damage of asperities for natural joints under direct shearing tests. For ... -
Finite-Element Simulation of Instrumented Asphalt Pavement Response under Moving Vehicular Load
(ASCE, 2020)Understanding the structural behavior of layered asphalt pavements subjected to dynamic moving wheel loads is a crucial requirement for the future design of more-durable pavement structures. Therefore, to accurately evaluate ... -
Reliability of Shape Factors for Bearing Capacity of Square Footings on Spatially Varying Cohesive Soils
(ASCE, 2020)Shape factors traditionally are used to relate the bearing capacity of square, rectangular, and/or circular footings to that of strip footings in geotechnical foundation designs, in order to take account of additional ... -
Exploring Passive and Active Metamodeling-Based Reliability Analysis Methods for Soil Slopes: A New Approach to Active Training
(ASCE, 2020)For geotechnical systems involving complex behaviors and significant uncertainties, metamodeling-based reliability methods based on fixed designs of experiment (passive metamodeling methods) are frequently applied. However, ... -
Control of Ground Uplift Based on Flow-Field Regularity during Grouting in Fracture with Flowing Groundwater
(ASCE, 2020)Controlling rock mass uplifting is of great importance when grouting in large opening fracture with flowing groundwater. This paper investigated the basic mechanism of overburden stratum uplift. The ideal fluid assumption ... -
Accounting for 2D Spatial Variation in Slope Reliability Analysis
(ASCE, 2020)Within the framework of the limit equilibrium method of slices, a slope reliability analysis accounting for two-dimensional (2D) spatial variation requires a model to discretize a random field into a finite number of random ... -
Numerical Investigation of Grain Fragmentation of a Granular Specimen under Plane Strain Compression
(ASCE, 2020)In this paper the influence of grain fragmentation on the change of the grain size distribution and an additional compaction of a cohesionless granular material was modeled in a simplified manner by introducing the mean ... -
Modified Models for Predicting Dynamic Properties of Granular Soil Under Anisotropic Consolidation
(ASCE, 2020)The shear modulus and damping ratio are important parameters for the design of structures subjected to dynamic loading and can be obtained by in situ and laboratory measurements. Previous research has lacked quantitative ... -
Evaluation of Group Capacity of Micropile in Soft Clayey Soil from Experimental Analysis Using SVM-Based Prediction Model
(ASCE, 2020)Nowadays, micropiles, due to their capability to sustain high loads in a soft cohesive soil, are drawing attention from researchers, geotechnical engineers, and builders. However, the load-carrying capacity of a micropile ... -
Experimental Study of Mechanical Behavior of Interlayer Staggered Zone under Cyclic Loading and Unloading Condition
(ASCE, 2020)The unloading and reloading of geostress during the excavation of large underground caverns tends to bring about large deformation and failure problems of rock masses with interlayer staggered zones (ISZs), posing significant ... -
Particle Breakage and Deformation Behavior of Carbonate Sand under Drained and Undrained Triaxial Compression
(ASCE, 2020)The results of a series of drained and undrained triaxial compression tests terminated at various axial strains were reported to show the gradual accumulation process of particle breakage of a carbonate sand during triaxial ... -
Influence of Load Mode on Particle Crushing Characteristics of Silica Sand at High Stresses
(ASCE, 2020)A series of high-pressure compression tests with various stress paths under monotonic and cyclic loadings were performed to examine the compression and particle crushing characteristics of silica sand in a dense state. ... -
Shape Characterization of Fragmented Sand Grains via X-Ray Computed Tomography Imaging
(ASCE, 2020)The mechanical and hydraulic properties of granular materials are fundamentally affected by the grain size and shape. Three samples of uniformly graded quartz sand with different size ranges were subjected to one-dimensional ... -
Analytical Model for Multicomponent Landfill Gas Migration through Four-Layer Landfill Biocover with Capillary Barrier
(ASCE, 2020)An analytical model was developed to simulate migration of methane (CH4), oxygen (O2), carbon dioxide (CO2), and nitrogen (N2) through a four-layer landfill biocover, which can account for the four-layer structure and the ... -
3D Complete Nonlinear Methods for Soil–Building Interaction Based on an Input Wavefield
(ASCE, 2020)Three-dimensional (3D) complete nonlinear methods for examining soil–building interaction based on an input seismic wavefield were developed. A seismic wavefield means seismic waves propagating in a 3D medium. Vertical ... -
Numerical Investigations of Blockiness of Fractured Rocks Based on Fracture Spacing and Disc Diameter
(ASCE, 2020)Some numerical models treat masses of rock as assemblages of isolated blocks, whereas others treat them as continuous material. It needs to be determined at what level a rock is cut into assemblages of discrete blocks by ... -
Three-Dimensional DEM Analysis of Axially Loaded Geogrid-Encased Stone Column in Clay Bed
(ASCE, 2020)The discrete-element method (DEM) was employed in this study to analyze the micromechanical behavior of an axially loaded geogrid-encased stone column (GESC) installed in a clay bed. A three-dimensional DEM model was ...