瞬变电磁法在煤层采空区勘探中的应用——以山西柳林碾焉煤矿为例  

Application of Transient Electromagnetic Method in Mining Goaf about Coal Seam——Taking Nianyan Coal Mine( Liulin,Shanxi) as an Example

作　　者：王伟明[1] 李勇[1] 向琳[1] 王俊茹[2] 刘颖倩[1] 邵崇建 栗晓军 

机构地区：[1]成都理工大学(油气藏国家重点实验室),四川成都610059 [2]石家庄经济学院,河北石家庄052165 [3]中国煤炭地质总局水文地质局,河北邯郸056000

出　　处：《防灾科技学院学报》2016年第1期66-71,共6页Journal of Institute of Disaster Prevention

基　　金：国家自然科学基金项目(41372114)

摘　　要：山西柳林碾焉煤矿在巷道开挖过程中,发现煤壁出现挂汗以及巷道渗水等相关现象。初步认定为采空区遭到一定程度的破坏,并产生渗漏水现象。为探明本区内采空区的分布范围及其积水情况,针对该区进行瞬变电磁法勘探。运用加拿大凤凰公司研发生产的V-8多功能电法系统参与勘探,通过勘察结果数据的解译表明:工区内绝大部分电阻率剖面表现为高阻异常,说明区内采空区不存在大规模水体或者说没有发生大面积漏水。电阻率剖面只有局部表现出低阻异常,范围较小。分析得出在西南区极小区域存在由于地形较低使得地下水以及地表水沿顺层向采空区渗漏,但是并不能够对矿井的正常生产造成危害。本次勘探成果可以为解决矿山建设和矿藏开采中的一些地质方面的问题提供地球物理依据,进一步为矿山开采提供安全保障,增加社会经济效益。There was tunnel seepage phenomenon in the excavation process of in coal tunnel wall of Nianyan coal mine in Liulin, Shanxi. Prehminary estimate was that the goaf had been damaged to some extent, and caused the leakage. To explore in the area of the mining goaf and the water situation in the region, the transient electromagnetic method exploration was used. The V - 8 multi-function electrical system, developed by Phoenix Company of Canada, was used in the exploration. Observation data could be interpreted that the majority of high resistivity means no large water leakage. Low resistivity anomaly is partial. Water leakage is in a small area in the southwest, and does not harm the normal production. Some geophysical data can be provided, and will be beneficial for the society and economy.

关 键 词：瞬变电磁 采空区 电阻率 矿山开采 含水情况 

分 类 号：P618.110.8[天文地球—矿床学]