岩石冲击损伤特性与冲击压力的实验研究

Experimental Study on Impact Damage Properties of Rock and Impact Pressure

采用一级轻气炮对岩石试件进行冲击损伤实验,通过飞片速度测试系统测试碰撞速度,从而计算冲击压力,并利用声波测试仪对回收试件进行声波测试,探测试件内部损伤程度,分析了冲击压力与岩样损伤的关系。其结论对岩石的爆破设计有一定的指导性意义。

The impact-damaged experiments for rock samples were made by one-stage light-gas gun.The impact velocity was tested by the flyer velocity test system to calculate impact pressure. The acoustic testing on the damaged rocks was conducted by instrument so as to explore internal damage degree of the rock samples and to analyze the relations of impaet pressure and damage degree. The conclusion could provide guidance for blast design of rock.