【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．更多还原

【Abstract】 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.更多还原