瞬变电磁法在探测浅部煤层采空区的应用实例  

Application of TEM in Detecting Goaf of Shallow Coal Seam

作　　者：赵辉 王辉 周旭光 Zhao Hui;Wang Hui;Zhou Xuguang(Shaanxi Coalfi eld Geophysical Survey and Mapping Co.,Ltd.,Shaanxi,710000)

机构地区：[1]陕西省煤田物探测绘有限公司,陕西710000

出　　处：《当代化工研究》2023年第18期125-127,共3页Modern Chemical Research

摘　　要：随着煤层长期开采导致煤矿采空区大量出现,由此引起的地质环境的局部变化,严重影响矿山安全生产。为了探查陕北某煤矿浅部煤层规模化采空区的范围及积水情况,为采空区的治理和后续工作面的合理布设提供有效的地质依据,笔者采用地面瞬变电磁法中心回线装置,结合野外地质调查和测区的水文地质情况,以相对低阻特征为依据,解释推断了煤层采空区的范围和积水情况。解释成果与已知采掘资料基本一致。表明采用瞬变电磁法方法是探查浅部煤层规模化采空区的有效手段,可为同类采空区探测提供有益的借鉴。With the long-term mining of coal seams,a large number of coal mine goafs appear,and the local changes in the geological environment caused by this seriously affect the safety production of mines.In order to explore the scope and water accumulation of the large-scale goaf area of a coal seam in a coal mine in northern Shaanxi,and to provide a reasonable and effective geological basis for the treatment of the goaf area and the rational layout of the subsequent work face,the author uses the ground transient electromagnetic method central loop device,combined with the field geological survey and the hydrogeological situation of the survey area,and interprets and infers the scope and water accumulation of the coal seam goaf area based on the relatively low resistance characteristics.The results of the interpretation are generally consistent with the known extractive data.The results show that the transient electromagnetic method is an effective means to explore the large-scale goaf of shallow coal seam,which can provide useful reference for the detection of similar goaf areas.

关 键 词：瞬变电磁法 中心回线装置 采空区 规模化 

分 类 号：TD[矿业工程]