International Journal of Geomechanics: Recent submissions
Now showing items 2381-2400 of 4049
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Accumulated Permanent Axial Strain of a Subgrade Fill under Cyclic High-Speed Railway Loading
(American Society of Civil Engineers, 2018)The ballastless track system (BTS) is widely adopted in the construction of high-speed railways (HSRs), in which the vehicle-induced cyclic stresses are evenly transferred to subgrade at a smaller amplitude compared with ... -
Probabilistic Analysis of a Rock Tunnel Face Using Polynomial Chaos Expansion Method
(American Society of Civil Engineers, 2018)The polynomial chaos expansion method was used to perform probabilistic analysis on a tunnel face driven in rock masses. The generalized Hoek-Brown (HB) failure criterion was used to characterize the strength of rock masses. ... -
Hypoplastic Modeling for the Mechanical Behavior of Frozen Soil in Stress Path Testing
(American Society of Civil Engineers, 2018)The extended hypoplastic constitutive model for frozen soil developed previously by the authors was applied to simulate the mechanical behavior of frozen soil under various stress path conditions, such as conventional ... -
Borehole Stability Analysis in Fractured Porous Media Associated with Elastoplastic Damage Response
(American Society of Civil Engineers, 2018)A dual-porosity finite-element model is presented for stability analysis of boreholes drilled in fractured porous media with the consideration of elastoplastic damage response. Governing differential equations adopted in ... -
Analysis of Tunnel Support Requirements Using Deterministic and Probabilistic Approaches in Average Quality Rock Mass
(American Society of Civil Engineers, 2018)The support design for rock tunnels involves a complex problem because of the various types of uncertainties present in rock mass properties; therefore, probabilistic approaches are used to consider these uncertainties ... -
Compaction-Based Analytical Stress Model for 3D Inclined Backfilled Stopes
(American Society of Civil Engineers, 2018)The evaluation of the state of stress in a backfilled stope is necessary for assessing the stability of the sides and assisting in barricade design. To date, a few analytical models have been proposed in the literature for ... -
Dynamic Response of Multilayered Silty Seabeds under Wave-Current Action in the Yellow River Estuary
(American Society of Civil Engineers, 2018)Few studies have focused on pore pressure and liquefaction in a layered silty seabed. This study investigated a silty seabed in the Yellow River Estuary. Based on Biot’s theory and further considering the influence of ... -
Experimental and 3D Numerical Study on Time-Dependent Behavior of Stone Column–Supported Embankments
(American Society of Civil Engineers, 2018)In this study, laboratory model tests and three-dimensional (3D) numerical analysis were carried out on stone column–improved ground under embankment loading. In the experimental study, the time-dependent change in stress ... -
Effect of Stiffness of Stone Column on Drainage Capacity during Soil Liquefaction
(American Society of Civil Engineers, 2018)Among the most used ground improvement techniques is the mitigation of soil liquefaction by installation of stone columns. To minimize soil liquefaction, the area ratio of the stone columns should be evaluated properly. ... -
Elastoplastic Model for Overconsolidated Clays with Focus on Volume Change under General Loading Conditions
(American Society of Civil Engineers, 2018)Overconsolidated clays are often encountered in geotechnical engineering; therefore, developing a sophisticated model that can accurately describe the mechanical behavior of overconsolidated clays has high practical value. ... -
Scale-Size Dependency of Intact Rock under Point-Load and Indirect Tensile Brazilian Testing
(American Society of Civil Engineers, 2018)The problem of scale-size dependency of the mechanical properties of intact rock has been extensively investigated with a particular focus on uniaxial compressive strength, whereas a limited number of studies have included ... -
New Method for Assessing Microfracture Stress Sensitivity in Tight Sandstone Reservoirs Based on Acoustic Experiments
(American Society of Civil Engineers, 2018)Research on the evaluation of microfractures in tight sandstone reservoirs is a frontier topic worldwide. A marine tight sandstone reservoir is present in the Silurian strata in the northern Tazhong area of the Tarim Basin, ... -
Quantitative Characterization Method for the Microcontacts and Macrocontacts of Two-Dimensional Granular Materials
(American Society of Civil Engineers, 2018)This article puts forward a quantified characterization method of micro- and macrocontacts of granular materials. The microcontact is defined as the contact surface with two voids in its two ends. The macrocontact is defined ... -
Untitled
(American Society of Civil Engineers, 2018)Nodal variable-based discontinuous deformation analysis (NDDA), which couples the finite-element method (FEM) mesh inside a discontinuous deformation analysis (DDA) block, aims to improve the stress accuracy and the contact ... -
Temperature Effect on AE Energy Characteristics and Damage Mechanical Behaviors of Granite
(American Society of Civil Engineers, 2018)To investigate the acoustic emission (AE) characteristics and damage mechanical behaviors of Huashan granite, two groups of uniaxial compression tests were carried out: the first group of tests was performed on samples ... -
Development and Application of a Large-Scale Static and Dynamic True Triaxial Apparatus for Gravel
(American Society of Civil Engineers, 2018)To investigate the mechanical characteristics of gravel under general stress conditions, a large-scale static and dynamic true triaxial apparatus was developed at Tsinghua University. The largest specimen was 2 × 2 × 4 mm, ... -
Influence of Pavement Roughness on Dynamic Stresses in Saturated Subsoil Subjected to Moving Traffic Loading
(American Society of Civil Engineers, 2018)This work aimed to gain insight into the influence of the dynamic component of vehicle load (caused by pavement roughness) on the dynamic stress responses in saturated subsoil. The analytical solutions for the three-dimensional ... -
Three-Dimensional Response of Neighboring Buildings Sitting on Pile Foundations to Seismic Pounding
(American Society of Civil Engineers, 2018)Seismic pounding occurs when the separation gap between buildings and structures is not wide enough, particularly during major earthquake events; this can cause them to collide, causing local damage or, in extreme cases, ... -
Verification of the CSDS Model in Estimating the Postpeak Behavior of Hard Rocks
(American Society of Civil Engineers, 2018)Rockburst is a serious instability problem in Canadian deep underground excavations and is related to the postpeak behavior of hard and brittle rocks. Rockburst potential can be estimated by comparing the postpeak stiffness ... -
Artificial Neural Network–Based Intelligent Compaction Analyzer for Real-Time Estimation of Subgrade Quality
(American Society of Civil Engineers, 2018)The quality and long-term performance of asphalt pavement depends significantly on the stiffness of the underlying subgrade. The modification of virgin soil, with additives such as cement kiln dust (CKD) and lime and its ...