International Journal of Geomechanics: Recent submissions
Now showing items 1181-1200 of 4049
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Contact Overlap Calculation Algorithms and Benchmarks Based on Blocky Discrete-Element Method
(ASCE, 2022/12/01)The mechanical response of granular materials has been investigated widely using discontinuous modeling, such as the discrete-element method (DEM). Contact detection and contact resolution have been critical issues when ... -
An Improved Statistical Damage Constitutive Model for Rock Considering the Temperature Effect
(ASCE, 2022/11/01)Thermal–mechanical damage is an important feature of natural rock containing internal defects (microcracks and microvoids). However, this damage has not been studied thoroughly. This study improved a statistical damage ... -
A Two-Dimensional Moisture Diffusion Continuous Model for Simulating Dry Shrinkage and Cracking of Soil
(ASCE, 2022/10/01)Dry shrinkage cracking of soil is a common phenomenon in nature. The shrinking and cracking of soil have been linked to several geological disasters. To simulate dry shrinkage cracking in soil, we present a continuous 2D ... -
Microstructurally Related Model for Predicting Behavior of Unsaturated Soils with Double Porosity in Triaxial Space
(ASCE, 2022/12/01)The microstructure can have an important impact on the hydraulic and mechanical behaviors of unsaturated soil; therefore, it must be considered in constitutive models to enable accurate predictions of soil behavior. This ... -
Dynamic Behaviors of Overconsolidated Clay under Cyclic Confining Pressure
(ASCE, 2022/11/01)Cyclic triaxial tests are commonly used to evaluate the mechanical characteristics of subgrade soil under cyclic loads. Most cyclic triaxial tests were conducted on normally consolidated clays, however, some of the subgrade ... -
Discrete-Element Simulation of Dense Sand under Uni- and Bidirectional Cyclic Simple Shear Considering Initial Static Shear Effect
(ASCE, 2022/12/01)Huge and critical structures, such as fuel storage tanks and nuclear power plants, are often built on dense sandy grounds, which may cause excessive plastic deformations under multidirectional cyclic shearing conditions ... -
Evolution of Nanomechanical and Macroscale Mechanical Responses of Expansive Clay during Swelling
(ASCE, 2022/11/01)A controlled uniaxial swelling device is used to saturate sodium-montmorillonite (Na-MMT) clay samples and allow them to swell to various swelling levels. Nanomechanical experiments are conducted on the saturated samples ... -
Evolution of Contact State during Shear of Rough Rock Joints and Its Influence on Seepage Characteristics
(ASCE, 2022/12/01)The seepage characteristics of fractured rock mass under compression and shear are one of the important factors affecting the stability of rock mass engineering. In order to understand the effect of shear action on the ... -
Investigation of the Load–Settlement Response of Piles in Sand Using an Interface Constitutive Model
(ASCE, 2022/11/01)A semianalytical approach has been developed to investigate the nonlinear load–settlement behavior of bored single piles and pile groups embedded in sands. A more rigorous load-transfer function for the pile shaft, adopted ... -
Thermohydromechanical Modeling of Evaporation from Unsaturated Soil
(ASCE, 2022/11/01)The accelerating pace of development due to groundwater overwithdrawal throughout the world places increasing demands on the unsaturated zone. Estimating evaporation from unsaturated soil has been important for many ... -
Impact Model for Baffle Design Resisting Granular-Flow Disasters
(ASCE, 2022/12/01)Baffle structures are effective measures for decelerating granular flows and reducing their destructive power. However, the engineering design of baffle structures, particularly with respect to their height and strength, ... -
Modeling the Phenomenon of Propagation of Technological Impulses in
(ASCE, 2022/10/01)This article presents a model describing the phenomenon of vibration propagation -
Seismic Response Analysis of Submerged Slopes Using Coupled SPH–DEM Scheme
(ASCE, 2022/12/01)In this study, the seismic response of submerged slopes is evaluated using a coupled smoothed particle hydrodynamics (SPH)–discrete-element method (DEM) framework. In this technique, DEM particles represent the soil grains ... -
Effect of Partially Imperfect Interface on Dynamic Response of a Circular Lined Tunnel in an Elastic Half-Space Subjected to Plane SH Waves
(ASCE, 2022/10/01)Loose zones and voids often exist behind the crown and the spandrel of a tunnel, and the interface between a tunnel lining and its surrounding medium is therefore partially debonded. To elucidate the partially imperfect ... -
An Analytical Model for Water Inflow into a Karst Tunnel in Vuggy and Fractured Porous Rock Aquifers
(ASCE, 2022/12/01)Vugs and fractures are the main channels within porous rock aquifers and play a dominant role in the water inrush of the karst tunnel. In this paper, a mathematical model of the coupled free-fluid seepage-fluid with ... -
New Unsaturated Dynamic Porosity Hydromechanical Coupled Model and Experimental Validation
(ASCE, 2022/10/01)Constitutive coupled modeling has developed rapidly in recent decades, with numerous new models published. However, few models consider dynamic porosity, and experimental validation of such a model remains a challenge due ... -
Grain-Size Distribution Effects on the Mechanical Behavior of Granular Soil in Response to EPBS Tunneling
(ASCE, 2022/12/01)A set of model tests using a miniature Earth Pressure Balanced Shield (EPBS) machine are carried out to examine the effects of grain-size distribution on the mechanical behavior of granular soil in response to EPBS tunneling. ... -
Semianalytical Model of Unloading-Induced Pore-Water Pressure and Consequent Consolidation Settlement of Surcharge Preloading Railway Subgrade
(ASCE, 2022/11/01)Surcharge preloading is a suitable foundation treatment for high-speed railways in soft soil regions. As a temporary preload on the foundation, the surcharge load must be removed before track construction. In this process, ... -
Methodology to Determine Thermal Properties of Soils in Cold Regions from Heat-Pulse Migration Characteristics
(ASCE, 2022/11/01)Accurate measurement of the thermal properties (viz., thermal conductivity, thermal resistivity, volumetric heat capacity, and thermal diffusivity) of soils in cold regions necessitates the development of techniques that ... -
Functionally Graded Materials Pile Structure for Seismic Noise Cancellation
(ASCE, 2022/10/01)This study explores surface-wave propagation through periodic arrangements of multilayered piles in a single-layer soil medium from the viewpoint of bandgaps. The influence of the geometrical parameters of the model on the ...