采空区裂隙带电各向异性特征物理实验模拟研究

fter the coal mining and being damaged,the overlying strata will form the "three zone" ,on the fractured zone, which easily develop into water conducting channel, resulting in the mine water inrush accidents. In this paper, using the method of physical simulation, through different physical model simulation of crack charged anisotropic characteristics, the results indicated that the apparent formation resistivity of the electrical anisotropy in polar chart present a elliptical distribution, the size is in connection with the dip angle and measuring line of stratum and also with the inclined angle of stratum's trend and tendency and the elliptical shape is controlled by the stratum's dip angle and direction of dip.Therefore,The results of the experiment can provide a certain guiding significance for Using direct current detection detect water inrush from coal seam roof fracture zone.