摘要
针对典型煤矿岩样,研究了岩体在受压破坏时其电阻率的变化特征,详细介绍了有关试验过程,并设计了一种新的测量电路,从而大大提高了其观测精度. 通过对几十块岩样的测试分析,得出了几种不同类型的电阻率和压力变化关系曲线.通过试验说明了岩体电阻率是岩体破坏过程中变化十分敏感的参数,岩体电阻率法可以用来进行岩体动力破坏的预测、预报.
Experiments of resistivity of rock in failure process are carried out. To improve the precision of the measurements, a modified circuit is designed in laboratory. Different types of resistivity variations are detected during the failure process of rocks. This experiment has shown that the resistivity of rocks is sensitive to the fracture of rocks. The resistivity method can be used in forecasting the dynamic destruction of rocks.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1999年第5期491-493,共3页
Journal of China University of Mining & Technology
基金
煤炭科学基金
关键词
电阻率
岩体破坏
试验
resistivity, rock fracture, laboratory experiment