Related Experiment Video
Updated: May 7, 2025

The Role of Fabric in Frictional Properties of Phyllosilicate-Rich Tectonic Faults
Published on: November 6, 2021
Influence of rock bolt reinforcement on shear behaviour of a nonpersistent joint plane
Hongyun Xue1, Xuxu Yang2, Pinnaduwa H S W Kulatilake3
1School of Civil Engineering and Architectures, Shandong University of Science and Technology, Qingdao, 266590, People's Republic of China.
Abstract:
The impact of rock bolts on the mechanical behavior of nonpersistent joints, including the intricate interactions between the joints, rock bridges, and rock bolts, has received limited investigation despite their effectiveness in reinforcing rock mass discontinuities. In order to tackle this issue, a variety of normal stresses were applied during direct shear tests conducted on artificial rock-like specimens with nonpersistent joints, both bolted and unbolted. Meanwhile, to measure the deformation in the rock bridge and joint plane region, a set of strain gauges were implemented. The findings indicated that the local shear deformation-shear displacement curves, whether with or without rock bolts, can be categorized into five distinct stages. Application of the rock bolts on the nonpersistent joint plane resulted in making the following two important statements: (a) The rock bolts delay the shear stress transmission along the joint plane from the joint parts to the rock bridge area; (b) The rock bolts limit the dilatancy occurring in both the joint parts and at the rock bridge area. Furthermore, the shear displacement of the bolted nonpersistent joint specimen at the peak shear strength was found to be greater than that of the unbolted nonpersistent joint specimen indicating protection of the rock bridge by the rock bolts. Whether bolted or unbolted, the stiffness values seem to be the same for the nonpersistent joint plane for a selected normal stress; this observation is significantly different from that observed for the persistent joint plane.
More Related Videos
09:00Visualization of Failure and the Associated Grain-Scale Mechanical Behavior of Granular Soils under Shear using Synchrotron X-Ray Micro-Tomography
Published on: September 29, 2019
06:21Installation Method to Enhance Quality Control for Fiber Reinforced Polymer Spike Anchors
Published on: April 10, 2018
Related Concept Videos
Shearing Stress
The average shearing stress can be calculated by dividing the shear by the area of the cross-section.
Shear on the Horizontal Face of a Beam Element
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
Relation Between the Distributed Load and Shear
Elastic Strain Energy for Shearing Stresses
Shear and Bending Moment Diagram: Problem Solving
Draw a Free-Body Diagram: Start by drawing a free-body diagram of the entire beam, including the concentrated loads, distributed load, and reaction...