槽波地震探测在厚煤层工作面的巷道响应分析

Tunnel Response Analysis in Thick Coal Seam Working Face by Channel Wave Seismic Detection Method

槽波地震探测技术作为当下最为有效的一种地球物理勘探方法,将其应用于简单构造厚煤层工作面开展采空巷道响应研究,挖掘槽波有用信息,寻求现有成像技术对采空巷道的定位响应。该文以陕北榆神矿区某矿采掘工作面为实例,煤层厚度稳定、构造简单,开展透射+反射槽波地震探测试验。结果表明:简单构造厚煤层连续性好、顶底板岩层与煤层物性差异大为槽波发育提供了良好条件,探测区反射槽波发育,多方位巷道成像效果显著。

As the most effective geophysical exploration method at present,the channel wave seismic detection technology is applied to the simple structure thick coal seam working face to carry out the response research of the goaf,excavate the useful information of the channel wave,and seek to use the existing imaging technology to ana‐lyze the goaf roadway.In this paper,taking the mining face of a mine in the Yushen mining area in northern Shaanxi as an example,it carries out transmission+reflection trough wave seismic exploration test with stable coal seam thickness and simple structure.The results show that the continuity of thick coal seam with simple structure is good,and the physical property difference between the top and bottom slates and coal seam is large,which provides a good condition for the development of trough wave.The reflection trough wave in the detection area is devel‐oped,and the imaging effect of multi directional roadway is significant.