瞬变电磁法在探测工作面顶板赋水性中的应用  

Application of TEM Method in Working Face Roof Aquosity Prospecting

作　　者：杨振威[1,2] 李贤庆[1,2] 凌标灿[1,3] 孔龙玺[1,2] 鲁超[1,2] 颜培岩[1,2] 

机构地区：[1]中国矿业大学煤炭资源与安全开采国家重点实验室,北京100083 [2]中国矿业大学地球科学与测绘工程学院,北京100083 [3]华北科技学院安全工程学院,北京101601

出　　处：《中国煤炭地质》2010年第1期62-66,共5页Coal Geology of China

基　　金：国家大型油气田及煤层气开发科技重大专项(2008ZX05007-03);教育部新世纪优秀人才计划支持项目(NCET-06-0204)

摘　　要：瞬变电磁方法对地下水反应敏感,而矿井瞬变电磁法具备距离目标体近,分辨率高的特点。为此使用加拿大产PROTEM47瞬变电磁系统,采用共面偶极方式布置线圈,对枣庄新安煤矿3上201工作面顶板赋水性进行了探查,指出顶板以上至70m高度的范围内(510～630m段),顶板含水裂隙发育,巷道顶部存在富水异常区,并得到了钻孔放水施工验证,为工作面安全回采提供了可靠的技术支持。井下疏放水和工作面回采资料表明,瞬变电磁法探测工作面顶板赋水性具有较高的准确性。The TEM method is sensitive to ground water, When the method is used in mines has more merits such as close to objects and high resolution. Adopting the Canadian PROTEM47 system in No.3U201 working face roof aquosity prospecting in the Xinan coalmine, Zaozhuang has found out well developed roof water-filled fissures and roadway roof aquosity anomalies within 70m height above the roof （510zn-630m sector）. The results have verified by borehole dewatering, thus provided reliable technical support in working face safe winning. The underground drainage and working face winning data have demonstrated that the geological interpretation has certain extent exactitude.

关 键 词：矿井瞬变电磁法 偶极方式 赋水性探测 

分 类 号：P631.3[天文地球—地质矿产勘探]