基于地震波法的底板破坏区域探测技术及应用

针对煤矿煤层底板采空区域不明确的问题，为了确定采空区的精确范围以及内部状态，采用物探的矿井反射地震波探测技术，首先利用地质探测仪对地震波波形进行数据采集，并进行数据分析以及波形的反演计算，最终根据波形的形状和频率确定底板破坏情况；其次将底板破坏区域分为上位层破碎带和下位层破碎带；最后在现场采用底板钻探的方法对地震波探测技术进行了验证。结果表明反射地震波探测技术得到的结果接近于钻探结果，采用反射地震波探测技术可以较精确判断底板采空区破坏范围。

Detection technology of floor damage area based on seismic wave method and its application

Aiming at the problem that the goaf area in coal seam floor of coal mine has been unclear, in order to determine the precise range and internal state of goaf, the detection technology based on mine reflection seismic wave through geophysical prospecting was applied. Firstly, the geological detector was used to collect the data of seismic waveform, and the data analysis and inversion calculation of waveform were conducted, then the situation of floor damage was determined by the shape and frequency of waveform. Secondly, the floor damage area was divided into upper layer fracture zone and the lower layer fracture zone. Finally, the detection technology based on seismic wave was verified by using the on-site floor drilling method. It showed that the results obtained by the detection technology based on reflection seismic wave were close to the drilling results. The damage range of floor goaf can be determined more precisely by using the detection technology based on reflection seismic wave.