Application of 3D Transient Electromagnetic Method in the Evaluation of Grouting Reinforcement of Mining Surface
At present,in the process of coal mining,the bottom plate water outburst occurs from time to time,which seriously affects the normal mining of coal mines.For the detection of the water-rich area in the abnormal area,a 3D transient electromagnetic method can make up for the deficiency of the traditional explo-ration technology in detecting the water-rich range in the floor of the mine working face.In this paper,taking 7401 working face of a coal mine as the research area,the bottom plate of 7401 working face was explored by two 3D transient electromagnetic methods,analyzed the apparent resistivity change of the abnormal area,and verified the grouting effect of the abnormal area.
water penetrationbottom plate3D transient electromagnetic methoddrilling groutingvisual resistivity
万方数据
维普
