综合物探方法在西部浅埋煤层采空探测中的应用

Application of comprehensive geophysical prospecting method in the exploration of shallow buried coal seam in the west of China

该文分析浅埋煤层采空区的主要危害及其地质与地球物理特征,提出以浅层地震法和瞬变电磁法结合探测的综合物探方法。以内蒙古矿区为例,通过试验工作确定最佳的勘探参数和处理流程,从而对采空区的赋水状况及分布范围进行评价,并结合矿区的验证钻孔,对探测结果进行验证和分析。结果表明,浅层地震和瞬变电磁在探测浅埋煤层采空区的位置和含水性方面切实可行。

The main hazards of shallow buried coal seam mining area and its geological and geophysical characteristics are analyzed, and a comprehensive geophysical prospecting method based on shallow seismic method and transient electromagnetic method is proposed. Taking Inner Mongolia mining area as an example, through the test work to determine the best exploration parameters and processing flow, so as to evaluate the situation and the distribution of the water in the mining area, and to verify the results of the detection and analysis. The results show that the shallow layer seismic and transient electromagnetic field are feasible in the detection of the position and the water cut of the shallow buried coal seam.