老窑采空区的探测技术与实例研究

The detection technology of excavated region in coal mine and case study

针对老窑不同的采煤方法(如壁式开采、房式开采)、不同的采空区类型(如工作面采空区、巷道采空区等)以及采空区内充填物质的差异等多种复杂情况,讨论了老窑采空区的地震波场和电磁波场响应,结合一些典型工程实例,总结了老窑采空区与老窑巷道在二维、三维地震资料上的判识标志以及视电阻率断面上的显示特征,提出了小煤窑采空区快速检测的最佳技术组合,即综合利用遥感地质影像分析、地面地质调查、地面地震与电法勘探以及钻探验证等多种手段相互配合,能够实现采空区的多方法、多参数综合探测,减少多解性,提高综合探测精度.

Based on the characteristic feature of different mining methods （ long wall and room-pillar mining） , different void （ working face void and roadway void and others） , different filling materials in void area and other corn-plicated situations, the 2D and 3D seismic and electromagnetic response in mined-out area and abandoned gallery were studied, which were supported by some typical engineering examples. The result shows that the integrated methods of remote-sensing, seismic exploration, electromagnetic detecting and drilling is the best technology combination, which has the characteristic of multi-methods, and achieve a high precision. multi-parameters to reduce the uncertainty of interpretation and achieve a high precision.