透射槽波方法在中厚煤层隐伏小断层探测中的应用

Application of Transmitted Groove Wave Method in the Detection of Concealed Small Faults in Medium-thick Coal Seam

为了准确有效地探测隐伏构造,确保工作面安全回采,避免地质灾害的发生,店坪煤矿9-206工作面应用透视槽波地震技术,分析槽波原理、施测方法以及在围岩透射中的不同衰减特点,采取特殊的计算方法CT成像,查明9-206工作面隐伏构造的位态,确定发育落差为2.5 m的小断层,最终在推采过程中实际揭露一落差为2.3 m的正断层,验证了本次槽波探测的有效性。

In order to accurately and effectively detect the hidden structure,ensure the safe mining of the working face,and avoid the occurrence of geological disasters,the perspective slot wave seismic technology is applied in the 9-206 working face of Dianping Coal Mine.The principle of the groove wave,the measuring method and the different attenuation characteristics in the surrounding rock transmission are analyzed,and the special calculation method CT imaging is adopted to find out the position of the concealed structure in the 9-206 working face,the small fault with a drop of 2.5 m is determined.Finally,a normal fault with a drop of 2.3 m is revealed in the process of pushing and mining,which verifies the effectiveness of this trough wave detection.