冲击荷载作用下岩石破坏机理预测

将岩石看作由彼此之间有内摩擦的颗粒团组成。利用力学模型分析了在冲击荷载作用下岩石破坏过程，阐述了岩石破坏后的力学行为。认为冲击荷载区域的变形近似为一维变形状态。冲击荷载作用在岩石中产生的应力波可以看作类似于冲击波的短波，在波阵面附近的某个狭窄区域内将发生参数的急剧变化。根据岩石介质中粒子运动速度的强弱应力状态发生由弹性状态向内摩擦状态的转变，最终达到流体力学状态。

Prediction for failure mechanism of rock under impact loading

Rock is regarded as particles with internal friction. The process of rock failure under impact loading is analyzed with mechanical model; and the dynamic behavior is described. The deformation near impact loading in rock is similar to one-dimensional deformation. The stress wave form the loading can be regarded as short-wave whose characteristics have sharp varieties in a cabined zone near wave front. The stress state will transfer from elastic state to internal friction state; finally liquid hydrodynamics state, with strong or leak movement of particles.