Uniaxial compression mechanical property test, fracture and damage analysis of similar material of jointed rock mass with filled cracks
Uniaxial compression mechanical property test, fracture and damage analysis of similar material of jointed rock mass with filled cracks
复制标题
DOI：
--
复制
发表时间：
2012
影响因子：
1.5
通讯作者：
Dong-liang Shao
中科院分区：
文献类型：
--
作者：
Dong-liang Shao
研究了裂隙充填对节理岩体力学性能的影响。采用相似材料对具有预设裂纹的脆性节理岩体试样进行了模拟。采用单轴压缩测试了试件的力学性能。利用ABAQUS软件对节理岩体的断裂损伤进行了分析。试验与分析结果表明：与未充填裂缝的岩样相比，充填裂缝的节理岩样峰值强度略有提高，峰后塑性显著增强；节理岩石试样应变能释放率Gc减小。其损伤系数、环向拉应力场面积和峰值均小于未填缝试件。
The influence of crack filling on the mechanical property of jointed rock mass is studied.The brittle jointed rock mass specimens with preset crack are simulated by the similar material.The mechanical properties of specimens are tested by uniaxial compression.The fracture and damage of jointed rock mass are analyzed through the program ABAQUS.The tests and analyses results show that compared with the specimens that there are no filling in the crack,the peak strength of jointed rock specimens which have filled crack slightly increase and its post-peak plasticity is enhanced significantly;the strain energy release rate Gc of jointed rock specimen decreases.The damage factor and the hoop tension stress field area as well as peak are less than those of specimens with non-filled cracks.