覆岩裂隙带电阻率响应特征

The resistivity responses characteristic in the overbreak zone of cover strata

在同时满足力学性质相似和稳定电流场参数相似的物理模型上 ,应用稳定电流场正问题物理模拟方法和现场实测方法详细研究了煤层覆岩在采动过程中裂隙带发育过程与视电阻率的动态响应特征 。

By means of the physical model satisfying simultaneously the similar conditions of mechanical properties and constant current field properties, the dynamic responses between the developing process of the overbreak zone in the mining process and the apparent resistivities were studied in detail by using the direct problem physical simulation of constant current field and in situ exploration. The variation of the relative abnormities of resistivity caused by the overbreak zone was found out by the direct and inverse fitting.