International Journal of Geomechanics: Recent submissions
Now showing items 2041-2060 of 4049
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Effect of Unloading Stress Levels on Macro- and Microfracture Mechanisms in Brittle Rocks
(ASCE, 2020)The effect of unloading stress levels on the unloading failure mechanism is explored from both macro- and microscopic perspectives by carrying out tests to load axial compression and unload confining pressures on marble ... -
Analytical Modeling of the Shear Behavior of Rock Joints with Two-Order Asperity Dilation and Degradation
(ASCE, 2020)Stability evaluation of rock structures requires a reliable model to assess the shear behavior of rock joints. This study reports an analytical model to predict the complete shear process of rock joints, and particularly ... -
Salt Solution Attack–Induced Freeze–Thaw Mechanical Degradation and Its Correlation with Strength Characteristic of Mode-I Fracture Sandstone
(ASCE, 2020)The safety and durability of rock mass engineering face rigorous testing in cold regions, prompting experimental study of the effect of chemical corrosion and freeze–thaw (F–T) cycles. By taking the actual environment of ... -
Choosing Appropriate Appraisal to Describe Peak-Spatial Features of Rock-Joint Profiles
(ASCE, 2020)Understanding the contact behaviors of rock joint is of fundamental importance in many rock engineering practices. Most of the available contact models rely on the spatial features of asperity peaks as input parameters, ... -
Quantifying the Morphology of Calcareous Sands by Dynamic Image Analysis
(ASCE, 2020)It is commonly accepted that the macroresponse of soil depends significantly on the microscopic particle characteristic features, such as size, shape, and roughness. These parameters can be obtained readily by dynamic image ... -
Study of Active Earth Pressure behind a Vertical Retaining Wall Subjected to Rotation about the Base
(ASCE, 2020)Retaining structures are often restrained in the case of cantilever in situ embedded walls, anchor, strutted, and bridge abutments and thus are subjected to rotation. The earth pressure distribution and point of application ... -
Dilatancy and Critical State of Calcareous Sand Incorporating Particle Breakage
(ASCE, 2020)Particle breakage has a crucial impact on the dilatancy and critical state of calcareous sand. This study performed several triaxial experiments on calcareous sand samples to describe the stress–dilatancy relationship of ... -
Stability Analysis of the Pressurized 3D Tunnel Face in Anisotropic and Nonhomogeneous Soils
(ASCE, 2020)This paper investigates the effect of the anisotropy and nonhomogeneity of soil on the three-dimensional stability of a pressurized tunnel face. A three-dimensional horn failure mechanism was constructed. The energy ... -
Analytical Model of an Anchored Wall in Creep Soils
(ASCE, 2020)A new analytical model of soil–structure interaction for creep ground is proposed, which can be used to calculate the load evolution on an anchored structure over time and the associated creep strains. This complete boundary ... -
Cerchar Abrasivity Index Estimation of Andesitic Rocks in Ecuador from Petrographical Properties Using Artificial Neural Networks
(ASCE, 2020)Rock abrasivity is the main factor that causes erosion of excavation tools and is usually quantified by the Cerchar Abrasivity Index (CAI). Although Cerchar abrasivity tests are easy to perform, they are time consuming and ... -
Spatial Fractal Structure of Microseismic Events for Different Types of Rockburst in Deeply Buried Tunnels
(ASCE, 2020)Based on a large amount of real-time microseismic monitoring data and hundreds of rockburst cases of different types stemming from the construction of deep tunnels at Jinping Mountain Hydropower Station, Sichuan Province, ... -
Soil Fabric and Anisotropy as Observed Using Bender Elements during Consolidation
(ASCE, 2020)This study examined the effects of soil minerals on soil anisotropy and determined the amount of changes in anisotropy during the consolidation process of soils. Soil fabric and anisotropy of kaolinite-rich and illite-rich ... -
Numerical Investigation of Binary Fluid Flow through Propped Fractures by Lattice Boltzmann Method
(ASCE, 2020)In this paper, a pore-scale multiphase, multicomponent Shan–Chen model with proper pressure boundary scheme is developed and implemented to model binary flows in porous media, which enables us to reveal the displacement ... -
Deformation Behaviors and Dynamic Backbone Curve Model of Saturated Soft Clay under Bidirectional Cyclic Loading
(ASCE, 2020)Many undrained cyclic triaxial tests considering cyclic confining pressure have been carried out on Ningbo saturated soft clay using a cyclic triaxial system to study the influence of cycle numbers, stress paths, and cyclic ... -
Hybrid Method for Predicting the Response of a Pile-Raft Foundation to Adjacent Braced Excavation
(ASCE, 2020)With the increasing development of underground spaces in cities, a critical indicator for the design of excavation in urban areas is controlling the damage potential of adjacent buildings. Unfortunately, the design of ... -
Experimental Investigation of Drilling Lateral Boreholes in Chalk Rocks with High-Pressure Jets
(ASCE, 2020)Increasing reservoir connectivity to the wellbore and bypassing the damaged area is crucial in improving the productivity of the wells and enhancing the swept area. This has become feasible by a new technology called radial ... -
Three-Dimensional Modeling of Contaminant Transport in Subsurface Soil Media Using UFV Approach
(ASCE, 2020)In this study, an upwind finite-volume (UFV) scheme was used to solve a three-dimensional contaminant transport model in order to investigate contaminant movement within a clay deposit beneath and around 10-year operation ... -
Experimental Evaluation of Geocell and EPS Geofoam as Means of Protecting Pipes at the Bottom of Repeatedly Loaded Trenches
(ASCE, 2020)With growing populations and continuing urban development, embedding pipes in the ground that are then overrun by traffic is inevitable. This paper describes full-scale prototype tests on high-density polyethylene (HDPE) ... -
Analytical and Computational Modeling of Integral Abutment Bridges Foundation Movement due to Seasonal Temperature Variations
(ASCE, 2020)Classical mechanics theory is used to develop an analytical model for determining pile displacement due to temperature variations, in integral abutment bridges (IABs). The advantage of this model, as opposed to simple ... -
Analysis of Seismic Waves Propagating through an In Situ Stressed Rock Mass Using a Nonlinear Model
(ASCE, 2020)In situ stress is a significant characteristic of underground rock masses. This work extended the time-domain recursive method (TDRM) to study oblique wave attenuation across an in situ stressed joint wherein the normal ...