瞬变电磁法在矿井防治水工作中的应用

Application of transient electromagnetic method in water prevention and control work in mine

为了分析研究麻地梁矿井主采煤层附近地层的富含水性等局部水文地质情况,开展了地面瞬变电磁法勘探。通过瞬变电磁勘探数据的滤波与反演等精细处理,分析了视电阻率拟断面以及不同层位的富水异常平面结果。基本查明了区内奥灰、主采煤层附近富水异常区的空间展布及其相对强度,为井下防治水工程设计提供了物探依据。

In order to analyze the local hydrogeologieal conditions of the stratum around the primary mineable coal seam of Madiliang Coal Mine, such as the water-bearing ability, ground prospecting with transient electromagnetic method was carried out. Based on the precise process- ing of transient electromagnetic prospecting data, such as smoothing and inversion, the apparent resistivity pseudosection map and abnormal water-rich area in different strata were analyzed. The spatial distribution and relative intensity of abnormal water-rich area around the Ordovieian lime- stone layer and primary mineable coal seam were found out, which provided geophysical prospec- ting basis for water prevention and control engineering design.