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随掘地震实时超前探测系统的试验研究

王季 覃思 吴海 张庆庆 余俊辉 苏晓云

王季, 覃思, 吴海, 张庆庆, 余俊辉, 苏晓云. 随掘地震实时超前探测系统的试验研究[J]. 煤田地质与勘探, 2021, 49(4): 1-7. doi: 10.3969/j.issn.1001-1986.2021.04.001
引用本文: 王季, 覃思, 吴海, 张庆庆, 余俊辉, 苏晓云. 随掘地震实时超前探测系统的试验研究[J]. 煤田地质与勘探, 2021, 49(4): 1-7. doi: 10.3969/j.issn.1001-1986.2021.04.001
WANG Ji, QIN Si, WU Hai, ZHANG Qingqing, YU Junhui, SU Xiaoyun. Experimental study on advanced real time detection system of seismic-while-excavating[J]. COAL GEOLOGY & EXPLORATION, 2021, 49(4): 1-7. doi: 10.3969/j.issn.1001-1986.2021.04.001
Citation: WANG Ji, QIN Si, WU Hai, ZHANG Qingqing, YU Junhui, SU Xiaoyun. Experimental study on advanced real time detection system of seismic-while-excavating[J]. COAL GEOLOGY & EXPLORATION, 2021, 49(4): 1-7. doi: 10.3969/j.issn.1001-1986.2021.04.001

 

“煤矿隐蔽致灾地质因素动态智能探测技术”专题 编者按:
  我国煤炭资源赋存地质条件差、隐蔽致灾地质因素多,迫切需要超前精细查明隐蔽地质异常体的分布状况,保障煤炭安全高效开采。当前,煤矿采区地质勘探、地面三维地震勘探、矿井物探在探测精度、深度与可靠性及时效性方面均不能完全满足煤矿生产的需求,亟需开展煤矿隐蔽致灾地质因素地球物理响应机理的研究,研发地面高精度勘探与井下动态智能探测的新技术与新装备,形成煤矿隐蔽致灾地质因素快速、精细、动态、智能探测技术体系。为了配合煤炭行业在隐蔽致灾地质因素探查的战略需求,交流分享我国在煤炭地质及矿井物探方面取得的最新科技成果,邀请中煤科工集团西安研究院有限公司王季研究员担任客座主编,依托国家重点研发计划项目(2018YFC0807800),开展“煤矿隐蔽致灾地质因素动态智能探测技术”专题策划,本期专题优选8篇稿件刊登,以期促进煤矿企业地质灾害防治的技术进步。

随掘地震实时超前探测系统的试验研究

doi: 10.3969/j.issn.1001-1986.2021.04.001
基金项目: 

国家重点研发计划课题 2018YFC0807804

国家自然科学基金面上项目 41974209

详细信息
    第一作者:

    王季,1977年生,男,陕西西安人,博士,研究员,硕士生导师,研究方向为井下物探技术. E-mail:wangji@cctegxian.com

  • 中图分类号: P631

Experimental study on advanced real time detection system of seismic-while-excavating

  • 摘要: 煤矿智能化建设要求采用智能化地质探测技术在巷道掘进过程中实时完成掘进前方区域的探测和预报。基于在线式矿井地震监测分站构建的随掘地震实时探测系统能够在巷道掘进的同时,采集以掘进机震动为震源的随掘地震数据,通过光纤网络实时传输至地面服务器的数据库内。随掘地震数据处理软件从数据库中获取当前随掘数据,经过筛选、提取虚拟炮集和偏移成像等步骤对掘进前方和侧前方一定区域进行反射槽波成像。为验证系统性能和探测结果的有效性,在正开展掘进作业的山西榆树坡煤矿5106回风巷内安装随掘地震实时探测系统,对该巷道开展为期数个月的随掘跟踪探测试验,探测系统实时采集随掘地震数据并成像,随着掘进长度的增加,每日的探测结果不断显示5106工作面内存在一条隐伏断层,后期的反射槽波探测和钻探工作验证了该断层的存在。试验结果表明,随掘地震实时探测系统能够在掘进过程中不断利用掘进机激发的地震信号对巷道前方和侧前方区域成像,从而在不影响掘进施工的条件下,实现了巷道侧前方地质异常体的连续跟踪探测和实时监测,达到了智能掘进系统对地质探测能力的要求。

     

  • 图  1  随掘地震探测系统构成

    Fig. 1  Composition of the detection system of seismic-while-excavating

    图  2  随掘地震数据处理流程

    Fig. 2  Data processing of seismic-while-excavating

    图  3  5106回风巷随掘地震实时探测系统布置

    Fig. 3  Layout of real time detection system of seismic-while-excavating in air return roadway 5106

    图  4  原始随掘地震数据

    Fig. 4  Original seismic data while excavating

    图  5  10月11日随掘虚拟单炮记录

    Fig. 5  The virtual single shot records from seismic-while-excavating data on Oct.11

    图  6  10月11日随掘数据成像结果

    Fig. 6  Imaging result of seismic-while-excavating data on Oct.11

    图  7  掘进过程中多日的虚拟炮集及实时成像结果

    Fig. 7  Pulsed seismic-while-excavating data and real time imaging results for days in the tunneling process

    图  8  5106回风巷反射槽波数据

    Fig. 8  Reflected in-seam wave of the air return roadway 5106

    图  9  5106回风巷反射槽波成像结果

    Fig. 9  Imaging result of reflected in-seam wave in air return roadway 5106

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  • 收稿日期:  2021-04-25
  • 修回日期:  2021-06-04
  • 刊出日期:  2021-08-25
  • 网络出版日期:  2021-09-10

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