基于电磁波层析成像技术的隐伏构造区边界判定  

Boundary Determination of Concealed Structure Region Based on Electromagnetic Tomography

作　　者：屈小兵 鲍俊睿 QU Xiaobing;BAO Junrui(Shanxi Lu’an Group Dongsheng Coal Industry Co.,Ltd.,Changzhi 046000,China;Licun Coal Mine of Cilinshan Coal Industry Co.,Ltd.,Lu’an Mining Group in Shanxi Province,Changzhi 046000,China)

机构地区：[1]山西潞安矿业集团东盛煤业有限公司,山西长治046000 [2]山西潞安矿业集团慈林山煤业有限公司李村煤矿,山西长治046000

出　　处：《煤矿安全》2020年第4期147-151,共5页Safety in Coal Mines

摘　　要：为了进一步探明李村煤矿1303工作面局部顶板高位塌陷现象的根本原因,采用电磁波定点法对1303工作面进行高精度坑道探测,得到了3组构造透视异常区,确定1303工作面前方存在3组隐伏构造,分别为煤层破碎带或层间断层、FJ17断层延伸段影响区以及FJ25断层延伸段影响区。结合工作面现推进位置,揭示了工作面92~#~123~#架间顶板发生大面积冒顶的根本原因是FJ17断层向工作面内延伸的反映,为工作面过断层延伸段的方案设计提供了可靠的理论依据。To further explore the root cause of the high roof collapse phenomenon of the 1303 working face, the high-precision tunnel detection of the 1303 working face was carried out by electromagnetic wave fixed point method, and three sets of structural perspective anomaly zones were obtained. Finally, three sets of concealed structures existed in front of the 1303 working face,respectively, coal seam fracture zone or interlayer fault, the affected area of the FJ17 fault extension and the FJ25 fault extension affected area. Combined with the current advancing position of the working face, it is revealed that the root cause of large area roof caving in the roof of the working face between 92~# support and 123~# support is the reflection of FJ17 fault extending into the working face.

关 键 词：隐伏构造 工作面冒顶 无线电波 层析成像 定点法探测 

分 类 号：TD163.1[矿业工程—矿山地质测量]