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

机译：在恒定法向刚度下模拟具有粗糙破坏的节理的剪切行为

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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.
机译：粗糙岩石节理的剪切行为在很大程度上取决于节理的表面特性以及在节理界面上施加的边界条件。本文提出了一种新的分析模型，该模型通过结合对凹凸不平的影响来描述在恒定法向刚度（CNS）边界条件下粗糙接头的完整剪切行为。特别地，研究了初始正应力水平和接头表面粗糙度对中枢神经系统条件下接头剪切行为的影响，并通过实验结果验证了该分析模型。最后，给出了该模型在节理岩体边坡稳定分析中的实际应用。

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