长治盆地霍尔辛赫煤矿三维地震勘探技术研究与应用

长治盆地霍尔辛赫煤矿位于长治盆地西侧，井田内断层和褶曲较发育，岩溶引起的陷落柱较多，需对其进行查明。三维地震勘探技术常用于井下勘探中，基于岩石的波阻抗差异，对地下地质构造进行推断、解释的物探方法。通过在此区开展此方法，详细查明区内新生界厚度、煤层底板起伏形态、断层、陷落柱的分布及其性质。研究得出，3号煤层达到查明程度，15号煤层为控制程度，共发现波幅≥10 m的褶曲7个；发现的6条断层中落差≥5 m的3条为逆断层，＜5 m的3条为正断层；长轴直径＞25 m的陷落柱6个，其中3个为控制可靠陷落柱，另3个为控制较可靠陷落柱；并圈定异常区3处。研究为后续煤矿开采设计提供了详实、可靠的地球物理资料。

Research and application of 3D seismic exploration technology in Holxinhe Coal Mine of Changzhi Basin

Holxinhe Coal Mine in Changzhi Basin is located in the west side of Changzhi Basin.Faults and folds are well developed in the mine field，and there are many collapse columns caused by karst，which need to be identified.Three-dimensional seismic exploration technology is often used in underground exploration.Based on the difference of rock wave impedance，it is a geophysical exploration method to infer and interpret underground geological structure.By using this method，the thickness of Cenozoic，the relief morphology of coal floor，the distribution and properties of faults and collapse columns in this area are found out in detail.The conclusions are as follows:No.3 coal seam has reached the ascertainment level，and No.15 coal seam is the control level.Three of the six faults found with a drop of 25 m are reverse faults.Three of 5 m are normal faults.There are 6 collapse columns with long axis diameter >25 m，among which 3 are reliable collapse columns and the other 3 are relatively reliable collapse columns.Three abnormal areas are delineated.This study provides detailed and reliable geophysical data for subsequent coal mining design.