地球物理学进展 ›› 2016, Vol. 31 ›› Issue (2): 877-881.doi: 10.6038/pg20160251

• 应用地球物理学Ⅰ • 上一篇    下一篇

CSAMT探测大采深急倾斜煤层采空区研究

张永超1,2, 程辉3, 张克聪4, 廉玉广1,2, 李文1,2   

  1. 1. 煤炭科学技术研究院有限公司安全分院, 北京 100013;
    2. 煤炭资源高效开采与洁净利用国家重点实验室(煤炭科学研究总院), 北京 100013;
    3. 湖南科技大学, 湘潭 411201;
    4. 甘肃靖远煤电股份有限公司王家山煤矿, 白银 730917
  • 收稿日期:2015-06-11 修回日期:2015-12-11 出版日期:2016-04-20 发布日期:2016-03-28
  • 通讯作者: 程辉,博士,讲师,主要从事地电场理论研究.(E-mail:345802734@qq.com) E-mail:345802734@qq.com
  • 作者简介:张永超,男,1983年生,河南焦作人,毕业于中国科学院地质与地球物理研究所,主要从事电磁法正反演工作.(E-mail:zych28@163.com)
  • 基金资助:

    国家科技重大专项资助项目(2011ZX05040-001-002)、广西隐伏金属矿产勘查重点实验室开放基金(14-045-27)和国家自然科学基金资助项目(51404139)联合资助.

Detecting goaf of large mining depth in steep coal seams by CSAMT

ZHANG Yong-chao1,2, CHENG Hui3, ZHANG Ke-cong4, LIAN Yu-guang1,2, LI Wen1,2   

  1. 1. Mine Safety Technology Branch, China coal research institute, Beijing 100013, China;
    2. State Key Laboratory of Coal Mining and Clean Utilization China Coal Research Institute, Beijing 100013, China;
    3. Hunan Unversity of Science and Technology;Hunan Xiangtan 411201, China;
    4. Wangjiashan Coalmine, Gansu Jinyuan Coal Industry & Electricity Power Co., Ltd., Baiyin 730917, China
  • Received:2015-06-11 Revised:2015-12-11 Online:2016-04-20 Published:2016-03-28

摘要:

2.5维有限元法正演模拟表明,当大采深急倾斜煤层中存在一定规模的采空区时,对应的视电阻率异常幅度大于8%,从理论上验证了CSAMT探测大采深急倾斜煤层采空区的可行性.通过设置合理的施工参数,选择合理的资料处理方法,采用CSAMT在王家山煤矿大采深急倾斜煤层探测的实践中获得了高分辨率的视电阻率断面图,其结果与钻探结果吻合.理论和实践表明了CSAMT探测大采深急倾斜煤层采空区可行且具有良好的效果.

Abstract:

The results of 2.5-D finite element forward calculating showed when there was a certain scale goaf of large mining depth in the steep coal seam,the max amplitidue of apparent resistivity anomaly was above 8%,which theoretically validated the feasibility of adopting CSAMT to detect goaf of large mining depth in steep coal seam. CSAMT had been applied in Wangjiashan Coalmine to detect goaves that were typically of large mining depth in steep coal seams,apparent resistivity sections with high resolution had been acquired by setting suitable operation parameters and adopting wise data processing methods and the result fitted the drilling well. These all above facts showed that CSAMT was feasible and had sound effect to detect goaf of large mining depth in steep coal seams.

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