赋存深度对岩石动态断裂韧性的影响

摘要

According to the standard testing method of ISRM, the dynamic fracture toughness for the basalt samples in different depth has been measured. And the rules of the dynamic fracture toughness increasing with the depth were obtained.And rocks in different depth have different dynamic fracture due to its different strength.%按照国际岩石力学学会试验规范,对不同赋存深度的玄武岩岩样进行了动态断裂韧性测试.得到了动态断裂韧性随着赋存深度的增大而增大的规律;分析了影响动态断裂韧性的原因,探讨了由于岩石的强度不同,从而导致不同深度下岩石的动态断裂韧性不同.