节理岩体剪切试验的非连续变形方法分析
首发时间:2014-07-08
摘要:本文参照前人对含断续节理岩体所做剪切模型试验的结果。采用改进的非连续变形分析方法(DDARF)对剪切试验进行数值模拟。从破裂现象看,仿真和模型试验结果相符良好。随后又对断续节理做雁形排列变化,探究了不同裂隙错距的模型破裂现象、及相应的模型峰值剪切强度。
关键词: 数值模拟 剪切试验 DDARF 裂隙扩展 峰值剪切强度
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DDA Method of Shear Test for Jointed Rock Mass
Abstract:On the basis of predecessors' studies of shear test for jointed rock mass, using numerical simulation of shear test by the improved DDARF. The result of fracture phenomenon show high compatibility with the model test. Different fracture phenomenon and peak strength of shear was explored by the V-shape arrangement of crack.
Keywords: Numerical simulation shear test DDARF crack propagation peak strength of shear
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