摘要
煤矿老空区一直是威胁矿井安全生产的重要因素。为准确探测老空区位置及分布情况,先利用三维地震和瞬变电磁法确定采空区范围,再根据物探解释成果布设验证钻孔,对物探解释采空区范围进行验证,最终精准确定采空区分布范围。综合应用三维地震和瞬变电磁法确定采空区位置的正确率为67%。物探与钻探相结合的探测方法,对类似的采空区探测具有一定的借鉴意义。
The coal mine goaf has always been an important factor threatening the safe production of mines.In order to accurately detect the location and distribution of the goaf,the goaf area was determined by 3D seismic and transient electromagnetic method,and then the verification boreholes were laid according to the results of geophysical interpretation to verify the goaf area,and finally the distribution range of the goaf was accurately determined.The accuracy rate of determining the location of goaf by using 3D seismic and transient electromagnetic method is 67%.The combination of geophysical exploration and drilling has certain reference significance for similar goaf detection.
作者
张博辉
严戈
张奋轩
王建虎
李铭
ZHANG Bo-hui;YAN Ge;ZHANG Fen-xuan;WANG Jian-hu;LI Ming(Shaanxi Institute of Coal Science and Research,Xi'an 710001,China;Natural Resources Bureau,Fengdong New Town of Xixian New Area,Xi'an 710116,China;Shaanxi Coalfield Geophysical Survey and Mapping Co.,Xi'an 110005,China)
出处
《陕西煤炭》
2019年第6期15-18,5,共5页
Shaanxi Coal
关键词
老空区
三维地震
瞬变电磁
钻探验证
goaf
3D seismic
transient electromagnetic method
drilling verification
