瞬变电磁法在某煤矿工作面水害超前预测中的应用  

Application of Transient Electromagnetic Method in Advanced Prediction of Water Disaster in a Coal Mine Working Face

作　　者：王建功 WANG Jiangong(Datong Co.,Ltd.of Shanxi Coal Transportation and Marketing Group)

机构地区：[1]山西煤炭运销集团大同有限公司

出　　处：《现代矿业》2024年第4期159-161,共3页Modern Mining

摘　　要：针对某煤矿工作面水害勘探问题,首先分析了区域内水文和地质情况,再根据瞬变电磁法基本原理,制定了工作面物探方案,并对物探结果进行反演分析。分析结果表明,工作面上部积水区位于走向400~1200m,是上覆煤层的采空区呈东低西高的特征导致。经过钻探,对积水区边界进行验证,确定积水区域为工作面走向420~1200m,根据出水特征分析,水源确为老空水。钻探结果和物探结果基本一致。Aiming at the problem of water disaster exploration in a coal mine working face,firstly,the hydrological and geological conditions in the area are analyzed.Then,according to the basic principle of transient electromagnetic method,the geophysical prospecting scheme of the working face is formulated,and the geophysical prospecting results are inverted and analyzed.The analysis results show that the water accumulation area on the upper part of the working face is located in the strike of 400~1200 m,which is caused by the characteristics of the goaf of the overlying coal seam,which is low in the east and high in the west.After drilling,the boundary of the water accumulation area was verified,and the water accumulation area was determined to be 420~1200 m along the strike of the working face.According to the analysis of the water outlet characteristics,the water source was determined to be goaf water.The drilling results are basically consistent with the geophysical results.

关 键 词：老空水 瞬变电磁法 地球物理勘探 钻探 

分 类 号：TD745[矿业工程—矿井通风与安全]