摘要
介绍了一种测定岩石动态荷载-位移全过程曲线的实验技术。该方法采用长杆自由下落冲击圆柱形岩石试件。通过对杆端荷载的测量,并基于长杆条件下荷载、位移及落高之间存在的定量关系,进行了位移计算,从而得到荷载-位移全过程曲线。文中给出了三种岩石的动态荷载-位移全过程曲线。
Describes a method to measure the dynamic rock complete load-displacement curve. The specimen is impacted on by a long rod which will be freely falling down. In this way the displacement is calculated utilizing the load measured dynamically on rod's end and the relationship among load, displacement and falling height. A complete load-displacement curve can thus be plotted. Three curves for different rocks are given.
关键词
岩石
动态破裂
长杆冲击
力学性能
rock, dynamic fracture, long rod impact, complete curve.
