摘要
我们对含水岩石进行了双剪摩擦滑动实验。所用样品为济南辉长岩、周口店石灰岩,小浪底砂岩和点苍山大理岩。本实验得到的主要结果表明,水的存在增大了岩石的摩擦强度,减小了粘滑时的应力降和错距,促进了位移强化效应。这说明水对岩石摩擦的影响是一个复杂的问题。还应深入地研究。
The bishear frctional-sliding experiments upon water-bearing rocks have been done, while Jinan gabbro, Zhoukoudian limestone, Xiaolangdi sandstone and Diancangshan marble have been selected as rock samples. The main results from the present experiments show that the existence of water increases the frictional strength of rocks, decreases the stress drop and the heave distance during stick-slip, and promotes the effect of displacement hardening. This indicates that the effect of water upon rock friction is a complex problem, which needs to be studied further in the future.
出处
《地震研究》
CSCD
北大核心
1989年第2期155-160,共6页
Journal of Seismological Research
关键词
含水岩石
摩擦滑动
岩石破裂
位移
Rock fracture, Water-bearing rocks, Frictional sliding, Shear stress, Displacement
