申南某井田瞬变电磁方法试验研究及积水区预测  

Experimental Research on Transient Electromagnetic Method and Prediction of Waterlogging Area in a Minefield in Shennan

作　　者：王海博 王滋贯 WANG Hai-bo;WANG Zi-guan(Xi'an Research Institute,China Coal Technology and Engineering Group Crop.,Xi'an 710077,China;Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China)

机构地区：[1]中煤科工集团西安研究院有限公司,西安710077 [2]北京师范大学地理科学学部,北京100875

出　　处：《煤炭技术》2021年第6期137-141,共5页Coal Technology

摘　　要：为了查清井田内的采空区及积水区、上覆含水层富水区等情况,通过利用瞬变电磁法及视电阻率断面分析,分别确定了K_(8)砂岩区附近的5处、2^(#)煤层的9处以及K2灰岩附近的7处低阻异常区。根据其形成位置及性质,对这几处低阻异常区进行综合推断,分为推断含/富水区和推断采空积水区并探讨了其形成的机理。其中分析认为2^(#)煤层的7处低阻异常区包括3处采空积水区,4处含/富水区,K_(2)灰岩6处含/富水异常区。In order to find out the mined-out area,water accumulation area,and water-rich area in the overlying aquifer in the minefield,5 locations and 2^(#) near the K8 sandstone area were determined by using transient electromagnetic method and apparent resistivity section analysis.9 places in coal seams and 7 places with low resistance anomaly near K_(2) limestone.According to their formation location and nature,these low-resistance anomalous areas are comprehensively inferred,which are divided into inferred/rich water areas and inferred mined-out water accumulation areas,and the formation mechanism is discussed.According to analysis,the 7 low-resistance anomaly areas in the 2^(#) coal seam include 3 mined-out water accumulation areas,4 water-bearing/rich water areas,and 6 water-bearing/rich water abnormal areas in K_(2) limestone.

关 键 词：瞬变电磁法 低阻异常区 富水区 采空区 

分 类 号：P631.325[天文地球—地质矿产勘探] TD745[天文地球—地质学]