煤炭工程 ›› 2020, Vol. 52 ›› Issue (2): 32-37.doi: 10.11799/ce202002008

• 施工技术 • 上一篇    下一篇

多参数综合物探方法在煤矿采空区勘探中的应用研究

罗霄,许智海,李正胜,李文,姜鹏   

  1. 中国矿业大学(北京)
  • 收稿日期:2019-07-17 修回日期:2019-11-13 出版日期:2020-02-10 发布日期:2020-05-11
  • 通讯作者: 罗霄 E-mail:luoxiao528@163.com

Application of Multi-parameter Comprehensive Geophysical Prospecting Method in Exploration of Goaf in Coal Mines

  • Received:2019-07-17 Revised:2019-11-13 Online:2020-02-10 Published:2020-05-11

摘要: 为了探明陕北侏罗纪煤田中能亿安煤矿井田范围内的5-1号煤层采空区的分布范围及状况,针对单一物探参数误差大和单一物探方法效果不佳以及反演结果多解性的不足,提出采用三侧向电阻率、自然伽玛、自然电位以及井径等多种测井参数和瞬变电磁法、浅层二维地震法及音频大地电磁法三种地面物探方法组合的多参数综合物探方法对5-1号煤层采空区进行探测,基本查明了勘查区内采空区的分布范围及其赋存情况,研究结果表明:多种物探参数的组合可以避免单一物探参数造成的不同介质物性特征范围重叠的误差,提高探测精度,其中煤层和夹矸按各自的解释原则,其深度、厚度差值均小于0.05cm;多种物探方法结合使用的综合物探方法可以充分发挥浅层二维地震法分辨率高、音频大地电磁法对水体敏感以及瞬变电磁法抗干扰能力强的优势,提高物探结果的可靠性和准确性。

关键词: 多参数, 综合物探, 采空区勘探, 瞬变电磁法, 浅层二维地震法, 音频大地电磁法

Abstract: In view of the large error of single geophysical parameters, the poor effect of single geophysical Prospecting method and the insufficiency of multi-solution of inversion results, a multi-parameter comprehensive geophysical Prospecting method is proposed to explore the distribution and status of No. 5-1 coal seam goaf in Zhongneng Yi'an Coal Mine in the Jurassic Coalfield of Northern Shaanxi, and the distribution and occurrence of the inner goaf of the exploration area is basically identified by geophysical verification combined with drilling exploration, which provide a reference for the disaster control of the goaf.

中图分类号: