基于煤层底板破坏情况与岩层电阻率变化的关系,在承压水上开采的相似模拟实验中,通过引入高分辨电法仪对底板岩层的电阻率进行实时测量,根据电阻率的变化情况来推断底板的破坏情况,寻找突水点,预测突水位置。通过对比开采前后的电阻率等值线图发现其电阻变化能够反映底板的裂隙演化规律且与现场观测大致吻合。这表明,通过监测岩层底板电阻率的变化来监测底板的破坏情况是可行的。 Based on the relationship between the failure status of coal seam floor and the change of resistivity of rock strata, the resistivity of floor rock strata is measured in real time by introducing high-resolution electric-law instrument in simulating experiment of confined water mining, and the bottom plate is deduced according to the change of resistivity Destruction of the situation, looking for water inrush point, water inrush position prediction. By comparing the resistivity contour before and after mining, it is found that the change of resistance can reflect the evolution law of the crack in the floor and is in good agreement with the field observation. This shows that it is feasible to monitor the failure of the floor by monitoring the change of the floor resistivity of the rock formation.