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RISSpectral-Based Peak-Shear-Strength Criterion for Rock Joints
Publisher: American Society of Civil Engineers
Abstract: In general, roughness profiles of rock joints consist of nonstationary and stationary components. At the simplest level, only one parameter is necessary to quantify nonstationary joint roughness. To capture the nonstationary ...
Effect of Joint Geometry and Transmissivity on Jointed Rock Hydraulics
Publisher: American Society of Civil Engineers
Abstract: The effect of joint geometry parameters (joint orientation, joint density, and joint size) and joint transmissivity on the hydraulic properties of jointed rock blocks was examined in two dimensions using joint networks ...
Relations between Fracture Tensor Parameters and Jointed Rock Hydraulics
Publisher: American Society of Civil Engineers
Abstract: The fracture tensor is a combined measure of joint geometry parameters. The possible relations between the properties of the fracture tensor and the hydraulic properties of jointed rock including the equivalent continuum ...
Effect of Block Size and Joint Geometry on Jointed Rock Hydraulics and REV
Publisher: American Society of Civil Engineers
Abstract: The effect of joint geometry parameters and the size of jointed rock block on the hydraulic properties of jointed rock, including the equivalent continuum behavior, was investigated through numerical experimentation. The ...
Experimental and Numerical Simulations of Jointed Rock Block Strength under Uniaxial Loading
Publisher: American Society of Civil Engineers
Abstract: To simulate brittle rocks, a mixture of sand, plaster of paris, and water was used as a model material. Thin galvanized sheets were used to create joints in blocks made out of the model material. To investigate the failure ...
Stability Assessment and Support Design for Underground Tunnels Located in Complex Geologies and Subjected to Engineering Activities: Case Study
Publisher: American Society of Civil Engineers
Abstract: A good understanding of rock mass behavior around underground tunnels is necessary for stability assessment and support design. This paper presents a three-dimensional (3D) numerical analysis to support the aforementioned ...
Improved Probabilistic Kinematic Analysis Procedure Based on Finite Size Discontinuities and Its Application to a Rock Slope at Open Pit Mine in U.S.
Publisher: American Society of Civil Engineers
Abstract: An improved probabilistic kinematic analysis procedure is suggested incorporating the six steps listed in the paper. The variability of the shear strength and discontinuity orientation is taken into account in the probabilistic ...
Particle Flow Modeling of Rock Blocks with Nonpersistent Open Joints under Uniaxial Compression
Publisher: American Society of Civil Engineers
Abstract: In this study, numerical simulation of rock blocks with nonpersistent open joints under uniaxial compression was undertaken using the particle flow modeling method. First, the micromechanical parameter values of intact ...
Development of New Peak Shear-Strength Criterion for Anisotropic Rock Joints
Publisher: American Society of Civil Engineers
Abstract: The roughness of a natural rock joint was measured in different directions using a laser profilometer. Two stationary roughness parameters and a nonstationary roughness parameter (all fractal based) were used to quantify ...
Influence of Asperity Morphology on Failure Characteristics and Shear Strength Properties of Rock Joints under Direct Shear Tests
Publisher: American Society of Civil Engineers
Abstract: The asperity morphology has profound influences on the failure characteristics and shear strength of rock joints. To investigate these influences, degradation characteristics and mechanical properties were studied based ...