回采工作面隐伏构造无线电波透视技术精细化探测研究

为查明西山煤电西曲煤矿18401回采工作面影响开采的隐伏地质构造,为工作面的安全开采提供准确的物探地质资料,基于矿井无线电波透视理论,对18401工作面采用非均匀间隔观测系统进行无线电波透视探测,采用非均匀网格观测系统对回采工作面发射点和接收点进行加密布置,提高射线的覆盖密度,多次叠加提高信噪比。结果表明,针对回采工作面巷道边界未揭露、地质构造分布不明的情况,根据现场条件灵活采用非均匀间距观测系统,可以取得高精度的探测结果,提高工作面隐伏构造的探测精度。

Research on fine detection of concealed structure in working face by radio wave perspective technology

In order to find out the concealed geological structure affecting the mining of 18401 mining face in Xiqu Coal Mine of Xishan Coal Electricity Group and provide accurate geophysical prospecting geological data for safe mining,radio wave perspective detection was carried out at 18401 working face with non-uniform interval observation system based on the theory of mine radio wave perspective theory.By adopting non-uniform grid observation system,the arrangement of observation points and receiving points were more intensive to increase the coverage density of rays,and the signal-to-noise ratio(SNR)was increased by stacking multiple times.The results showed that in view of the unknown roadway boundary and unknown distribution of geological structure in the working face,the non-uniform spacing observation system used flexibly according to the site conditions could achieve high precision detection results and improve detection accuracy of concealed structure in the working face.