岩石损伤特性与强度的超声波速研究

The rock damage and strength study based on ultrasonic velocity

摘要: 借助于损伤力学的观点 ,用岩石在未受荷载条件下的超声波速定义岩石的初始损伤变量 ;然后基于岩石在受荷载条件下的声学特性模型 ,建立岩石的损伤演化方程 ,从而给出运用岩石超声波速估计岩石强度的方法

Abstract: Based on damage mechanics, the initial damage variable of rock is defined as its ultrasonic velocity, when there is no loading on it. The damage evolution equation was set up by the ultrasonic properties model for rock under loading.The rock strength was predicted by the ultrasonic velocity of rock.