岩体破坏过程中的电阻率变化试验

英文篇名：Experiment of Resistivity Variation of Rocks in Failure Process
中文刊名：中国矿业大学学报
英文刊名：JOURNAL OF CHINA UNIVERSITY OF MINING & TECHNOLOGY
作者：李德春 ; 葛宝堂 ; 舒继森
英文作者：Li Dechun Ge Baotang ( College of Mineral Resource and Environment Sciences ; CUMT ; Xuzhou ; Jiangsu 221008 ) Shu Jisen ( Department of Mining Engineering ; CUMT ; Xuzhou ; Jiangsu 221008 )
中文关键词：电阻率 ; 岩体破坏 ; 试验
英文关键词：resistivity ; rock fracture ; laboratory experiment
出版日期：1999-09-30
机构：中国矿业大学资源与环境科学学院!江苏徐州221008,中国矿业大学资源与环境科学学院!江苏徐州221008,中国矿业大学采矿工程系!江苏徐州221008
年：1999
期：05
出版单位：中国矿业大学学报

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.

引文

1　Brace W F.Electrical resistivity changes in saturatedrocks during fracture and frictional sliding. JGeophysicalResearch,1968,73(4):1170～1178
2 　Stopinski W. Precursory rock resistivity variationsrelated to m ining trem ors. Acta Geophys, 1982,30(4):29
3～3203　赵玉林.原地电阻率变化的实验.地震学报,1983,5(2):217～225