基于COMSOL的三点源供电直流电法超前探测技术  

Advance detection technology of three-point source DC method based on COMSOL

作　　者：高卫富[1] 王克未 胡安顺 王乃军 GAO Weifu;WANG Kewei;HU Anshun;WANG Naijun(College of Energy and Mining Engineering,Shandong University of Science and Technology,Qingdao 266000,China;College of Earth Science and Engineering,Shandong University of Science and Technology,Qingdao 266000,China;Shandong Fifth Institute of Geology and Mineral Exploration,Tai'an 271000,China)

机构地区：[1]山东科技大学能源与矿业工程学院,山东青岛266000 [2]山东科技大学地球科学与工程学院,山东青岛266000 [3]山东省第五地质矿产勘查院,山东泰安271000

出　　处：《煤矿安全》2023年第8期168-172,共5页Safety in Coal Mines

基　　金：国家自然科学资金资助项目(41807283);山东科技大学人才引进科研启动基金资助项目(2014RCJJ036)。

摘　　要：传统单点供电电极直流电法超前探测技术对远距离异常体探测时,随着探测距离增加,信号逐渐减弱,准确度大大降低。为了解决远距离超前探测误差较大的问题,结合已有直流电法超前探测技术,将单点源供电,改为三点源供电;利用COMSOL软件进行模拟,绘制测线视电阻率曲线图,并通过SURFER绘制视电阻率剖面图。结果表明:三点源供电可以较好反映出远距离异常体位置,增加了超前探测有效距离,提高了超前探测准确度。When the traditional single point power supply electrode DC advance detection technology is used to detect the longdistance anomaly,the signal gradually weakens and the accuracy greatly decreases with the increase of detection distance.In order to solve the problem of large error in long distance advance detection,we combine the existing DC method advance detection technology to change the power supply from single point source to three-point source,use COMSOL software to simulate,draw the apparent resistivity curve of the survey line,and draw the apparent resistivity profile through SURFER.The results show that the three-point source power supply can better reflect the location of the remote abnormal body,increase the effective distance of advance detection,and improve the accuracy of advance detection.

关 键 词：矿井水害防治 超前探测技术 直流电法 三点源供电 COMSOL 

分 类 号：TD163[矿业工程—矿山地质测量]