摘要
用水泥砂浆模拟含裂隙岩石试样，在刚性压力机上进行单轴压缩试验，通过声发射测试技术，分析含裂隙岩石在受压力过程中新裂纹的萌生———扩展———断裂破坏全过程。得到含中心斜裂纹试样受压破坏的声发射特征，揭示了含裂隙岩石压剪断裂破坏的内在机理。
The fissured rocks were simulated with cement mortar speciments which were tested on uniaxial compression.By means of acoustic emission the whole process from initiation_expansion_fracture of new craoks in fissured rock under compression was analysed.The characteristics of acoustic emission for specimens with central diagonal cracks at failure on compression were analysed.The mechanism of failure of fissured rock due to fracture on compression with shear was revealed.
出处
《地下空间》
CSCD
1998年第4期210-215,共6页
Underground Space
关键词
裂隙岩石
声发射
含裂隙岩石
压剪破坏
Uniaxial compression test, cement mortar, simulation, fissured rock, acoustic emission
