International Journal of Geomechanics: Recent submissions
Now showing items 1401-1420 of 4049
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Interaction of Soil Arching under Trapdoor Condition: Insights from 2D Discrete-Element Analysis
(ASCE, 2022-6-1)The trapdoor/trapdoor-like model test has been widely utilized to investigate the evolution of soil arching. However, the primary focus of previous studies has been on the mechanical and deformation behaviors of the arching ... -
Unloading Behaviors of Shale under the Effects of Water Through Experimental and Numerical Approaches
(ASCE, 2022-6-1)During tunnel excavations through shale formations in central and southwest China, engineering problems, such as large deformations and distorted arches, were encountered due to radial stress unloading and groundwater ... -
Effects of Rock Properties on the Wear of TBM Disc Cutter: A Case Study of the Yellow River Diversion Project, China
(ASCE, 2022-4-1)Disc cutters are a key component of a tunnel boring machine (TBM) for rock rolling and crushing, yet their high cost and complicated maintenance process generally increase the construction cost of a project significantly. ... -
Strainburst Control in Deep Tunnels Using a Slotted Excavation Method
(ASCE, 2022-4-1)Strainburst is the most common type of rockburst in deep excavations, which sometime result in heavy losses. This research studies the feasibility of a conceptualized destressing method for strainburst control. In this ... -
Shear Mechanical Properties of the Interphase between Soil–Rock Mixtures and Benched Bedrock Slope Surfaces
(ASCE, 2022-5-1)A series of benched excavations are typically carried out on bedrock slope surfaces to improve the stability of soil–rock mixtures (SRMs) on the fill slopes. In this paper, the shear characteristics and micromechanisms of ... -
Dynamic Reliability Analysis of the Stability of the 3D Slope of a Rockfill Dam Based on the Copula Function and Generalized Probability Density Evolution Method
(ASCE, 2022-5-1)Rockfill strength parameters are important indicators of the stability of a rockfill dam slope. Therefore, a rational representation of the distribution characteristics of these parameters is extremely important to accurately ... -
Three-Dimensional Stability Investigation of Trapdoors in Collapse and Blowout Conditions
(ASCE, 2022-4-1)Road-related sinkholes are of great concerns nowadays, appearing frequently in media stories. In the undrained stability analysis, a dimensionless stability number that is known as Broms and Bennermark’s original stability ... -
A Generalized Load-Transfer Modeling Framework for Tensioned Anchors Integrating Adhesion–Friction-Based Interface Model
(ASCE, 2022-5-1)The load-transfer mechanism of tensioned anchors is primarily concerned with in-service performance, which depends on the bond–slip behavior of anchoring interface. Because the interface bond–slip behavior is conventionally ... -
Discontinuous Modeling of Roof Strata Caving in a Mechanized Longwall Mine in Tabas Coal Mine
(ASCE, 2022-5-1)A better understanding of the interaction between shield supports, roof, and coal strata, along with the prediction of roof deformation and caving behavior is essential for successful longwall mining operations. The stability ... -
Deformation Behavior of Sandstones during Multilevel Cyclic Loading and Unloading under Varying Lower Stress Limits: Effect of Stress Amplitude and Underlying Mechanism
(ASCE, 2022-5-1)The purpose of this study was to explore the influence and action mechanism of the stress amplitude on the evolution of the deformation behavior of sandstones during multilevel triaxial cyclic loading and unloading (CLU) ... -
A Generic Analytical Elastic Solution for Excavation Responses of an Arbitrarily Shaped Deep Opening under Biaxial In Situ Stresses
(ASCE, 2022-4-1)This paper presents a generic analytical solution for stresses and displacements developed around an arbitrarily shaped underground opening excavated in an elastic soil/rock mass with biaxial in situ stresses. A series of ... -
Analytical Model for Failure Strength of Brittle Rocks under Triaxial Compression and Triaxial Extension
(ASCE, 2022-4-1)Rocks exhibit different failure strengths under triaxial compression and extension. The understanding and quantification of their relationship provide theoretical and practical benefits. Conventional Mohr-type criteria ... -
Evolution of Particle Shape Produced by Sand Breakage
(ASCE, 2022-4-1)This paper presents the results of a study on the evolution of particle shape in carbonate sands that underwent different degrees of particle breakage. Carbonate sand specimens with three different initial particle sizes ... -
Uncertainties in Vertical Stress Distribution in Spatially Varying Random Elastic Half-Space
(ASCE, 2022-5-1)This paper presents a comprehensive study on the effect of spatial variability of the elastic modulus on vertical stress distribution in an elastic half-space due to strip loading. The modulus of elasticity is considered ... -
Nonlinear Slip-Failure Surface and Associated Lateral Earth Pressure
(ASCE, 2022-4-1)In optimizing the design of retaining structures and monitoring their health, it is important to determine the actual nonlinear slip-failure surface and the associated nonlinear lateral stress distribution. This paper ... -
Effect of Contact Areas on Seepage Behavior in Rough Fractures under Normal Stress
(ASCE, 2022-4-1)The investigation of fluid flow in fractured rocks is a key issue in underground engineering. Three sandstone specimens with different roughnesses were generated by Brazilian splitting, and the geometric morphology and ... -
Morphology Characteristics of the Fragments Produced by Rock Grain Crushing
(ASCE, 2022-4-1)The morphology of fragments produced by grain fragmentation is a cause for great concern in many areas such as rockfill dam and the mining industry. Therefore, there is a need to conduct a quantitative analysis of the ... -
Investigation on the Microscopic Deterioration Characteristics of Anhydrite Rock Exposed to Freeze–Thaw Cycles
(ASCE, 2022-4-1)Freeze–thaw cycles induced deterioration on rocks begins with the damage in microstructures such as pores and pore throats. This paper was devoted to providing a fundamental understanding of the microscopic deterioration ... -
Wetting-Induced Collapse Behavior of Unsaturated Soils in Disturbed State Concept Framework
(ASCE, 2022-4-1)This paper presents a model for compression and wetting-induced collapse behavior of unsaturated soils using the disturbed state concept. The volume change and collapse behavior of unsaturated soils were described using ... -
Model Test on Backward Erosion Piping under a K0 Stress State
(ASCE, 2022-4-1)Piping is a major failure mechanism in both dams and dikes. In this work, we develop a transparent specimen tank that allows a camera to clearly record the piping formation process. In addition, this apparatus is able to ...