Modelling the Shear Behaviour of Rock Joints with Asperity Damage Under Constant Normal Stiffness

被引：0
|
作者：
Buddhima Indraratna
Sivanathan Thirukumaran
E. T. Brown
Song-Ping Zhu
机构：
[1] Centre for Geomechanics and Railway Engineering,Faculty of Engineering and Information Sciences
[2] ARC Centre of Excellence for Geotechnical Science and Engineering,Faculty of Engineering and Information Sciences
[3] University of Wollongong,Faculty of Engineering and Information Sciences
[4] Centre for Geomechanics and Railway Engineering,undefined
[5] University of Wollongong,undefined
[6] Golder Associates Pty Ltd,undefined
[7] University of Wollongong,undefined
来源：
Rock Mechanics and Rock Engineering | 2015年 / 48卷
关键词：
Rock joint; Dilation; Roughness; Asperity damage; Shear strength; Constant normal stiffness; Rock slope stability;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The shear behaviour of a rough rock joint depends largely on the surface properties of the joint, as well as the boundary conditions applied across the joint interface. This paper proposes a new analytical model to describe the complete shear behaviour of rough joints under constant normal stiffness (CNS) boundary conditions by incorporating the effect of damage to asperities. In particular, the effects of initial normal stress levels and joint surface roughness on the shear behaviour of joints under CNS conditions were studied, and the analytical model was validated through experimental results. Finally, the practical application of the model to a jointed rock slope stability analysis is presented.
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页码：179 / 195
页数：16
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