地球物理学进展 ›› 2018, Vol. 33 ›› Issue (5): 2187-2192.doi: 10.6038/pg2018BB0294

• 应用地球物理学Ⅱ(海洋、工程、环境、仪器等) • 上一篇    

煤矿采空区地球物理探测应用综述

薛国强1,2(),潘冬明3,*(),于景邨3   

  1. 1. 中国科学院矿产资源重点实验室,中国科学院地质与地球物理研究所,北京 100029
    2. 中国科学院大学,北京 100049
    3. 中国矿业大学资源与地球科学学院,江苏徐州 221116
  • 收稿日期:2017-11-11 修回日期:2018-08-10 出版日期:2018-10-20 发布日期:2019-01-11
  • 通讯作者: 潘冬明 E-mail:ppxueguoqiang@163.com;pdm3816@163.com
  • 作者简介:薛国强,男,1966年生,研究员,主要从事电磁法探测技术与应用研究.
  • 基金资助:
    国家自然科学基金(41474095);中国科学院地质与地球物理研究所矿产资源重点实验室开放基金;国土资源部煤炭资源勘查与综合利用重点实验室开放基金(KF2016-1)

Review the applications of geophysical methods for mapping coal-mine voids

XUE Guo-qiang1,2(),PAN Dong-ming3,*(),YU Jing-cun3   

  1. 1. Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    2. The University of the Chinese Academy of Sciences, Beijing 100049, China
    3. Chinese University of Mine and Technology, Jiangsu Xuzhou 221116, China
  • Received:2017-11-11 Revised:2018-08-10 Online:2018-10-20 Published:2019-01-11
  • Contact: Dong-ming PAN E-mail:ppxueguoqiang@163.com;pdm3816@163.com

摘要:

地下煤层开采后会形成大面积采空区,煤矿采空区的沉降或塌陷对地面各种大型工程建设和环境造成了重大的影响.许多地区煤层开采背景不清和地质环境复杂,对煤矿采空区有效探测被认为是一个世界难题.本文分析了采空区及上覆岩层的地球物理特征,介绍了近年来应用于煤矿采空区探测的地震法、瞬变电磁法、高密度电法、微动法、放射性法和探地雷达法等地球物理方法的发展概况.弹性波类方法可以探测采空区及围岩破碎带分布范围,电磁类方法可以探测采空区含水性.针对特定的地质环境,一方面需要确定不同地球物理方法的有效性,一方面需要采取综合地球物理方法进行探测,以提高识别采空区的准确性.

关键词: 煤矿, 采空区, 地球物理, 探测

Abstract:

Coal mined-out area,formed in mine production, usually cause a certain degree of ground subsidence and collapse. In many areas, the background information of coal seam mining is not clear and the geological environment is complex, so the effective detection for coal mining subsidence areas is generally considered as an international problem. In this paper, the geophysical characteristics of mine voids and overburden strata are analyzed. Geophysical methods such as seismic, transient electromagnetic, high density resistivity method, microtremor, radioactive and ground penetrating radar are introduced. The elastic wave method can determine the crushing range of the surrounding rock, and the electromagnetic method is effective for detecting the water content in mined out area. For the specific geological environment, it is not only essential to determine the effectiveness of different geophysical methods on detection targets, but also is necessary to take comprehensive geophysical methods to improve the reliability of geophysical exploration.

Key words: coal-mine, voids, geophysics, detection

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