阐述了基于COMSOL Multiphysics的矿井巷道直流电阻率超前探测正演过程,首先通过正演模型COMSOL Multiphysics模拟解与理论值的对比分析,验证了应用COMSOL Multiphysics进行矿井巷道直流电超前探测正演模拟的正确性与可行性。建立矿井巷道超前探测的三维地电模型,通过COMSOL Multiphysics正演模拟,研究了巷道前方存在不同形状异常体时矿井超前探测视电阻率曲线的形态及极值点位置。正演结果表明,相比于三极装置,二极装置更适合于超前探测,且相对于板状异常体,超前探测对球状异常体探测效果更好。

Based on the COMSOL Multiphysics, the paper had a description on the pilot detection positive evolution process of the mine roadway DC resistivity.Wit h the comparison analysis on the COMSOL Multiphysics simulation solution of the positive evolution and the theoretical value, the correctness and feasibility of the pilot detection positive evolution with mine roadway DC power with the application of COMSOL Multiphysics was verified.A pilot detection 3D ground electric model of the mi ne roadway was established.With the positive evolution simulation of the COMSOL Multiphysics, the shape and the extremum location of the mine pilot detection appar ent resistivity curve were studied when different shape abnormal mass was at the front of the mine roadway.The positive evolution results showed that in comparison wi th the three pole device, the two pole device would be more suitable to the pilot detection.Meanwhile the pilot detection would have a better detection effect of the sphe re abnormal mass than the plate shape abnormal mass.