透射槽波在开滦矿区煤层厚度变化探查中的应用

Application of transmitted channel wave in exploration of coal seam thickness variation in Kailuan mining area

为研究透射槽波对开滦矿区煤层厚度变化情况的探查效果,在开滦矿区某矿2022工作面两巷侧帮开展透射槽波探测,采用透射槽波振幅衰减系数CT成像方法对工作面进行成像,以圈定工作面内煤层厚度变化区域及其他构造异常。经回采验证,槽波探测圈定的煤层厚度变化区域重合度较高,断层位置解释准确。结果表明,透射槽波适用于开滦矿区的煤层厚度变化探查,探查结果为下一步工作面的安全回采提供了地质依据。

In order to find out the range of coal seam thickness variation in the 2022 working face of a mine in Kailuan mining area,the transmission groove wave detection is carried out in the side of the 2022 working face,and the working surface is imaged by the CT imaging method of the transmission slot wave amplitude attenuation coefficient.The area of coal seam thickness change and other structural anomalies in the working face are located.After verification by the recovery,the area of the coal seam thickness change determined by the groove wave detection is extremely high,and the fault position is explained accurately.The results show that the transmission groove wave is effective in the exploration of coal seam thickness variation in the Kailuan mining area.The exploration results provide a geological basis for the safe mining of the next working face.