• 中文核心期刊
  • 中国科技核心期刊
  • RCCSE中国核心学术期刊

煤矿冲击地压巷道支护-卸压协同控制技术

曾晋, 刘振江

曾晋, 刘振江. 煤矿冲击地压巷道支护-卸压协同控制技术[J]. 煤矿安全, 2017, 48(6): 138-141.
引用本文: 曾晋, 刘振江. 煤矿冲击地压巷道支护-卸压协同控制技术[J]. 煤矿安全, 2017, 48(6): 138-141.
ZENG Jin, LIU Zhenjiang. Support and Pressure Relief Coordination Control Technique for Rock-burst Roadway in Deep Coal Mine[J]. Safety in Coal Mines, 2017, 48(6): 138-141.
Citation: ZENG Jin, LIU Zhenjiang. Support and Pressure Relief Coordination Control Technique for Rock-burst Roadway in Deep Coal Mine[J]. Safety in Coal Mines, 2017, 48(6): 138-141.

煤矿冲击地压巷道支护-卸压协同控制技术

Support and Pressure Relief Coordination Control Technique for Rock-burst Roadway in Deep Coal Mine

  • 摘要: 在分析深井煤层巷道冲击地压发生原因的基础上提出了支护-卸压协同控制技术,同时进行FLAC2D数值模拟,并对某矿7121工作面实施工程实践。结果表明:高静载主导-强动载诱发下的动静载叠加诱冲机理;锚杆内强支护、大直径钻孔软弱结构、原岩应力外强结构体为一体的支护-卸压协同控制技术能够提高巷道的抗冲、减冲、防冲能力;支护-卸压协同应力峰值30.24 MPa、两帮收敛量45.52 mm、塑性区最大,冲击危险性最小;现场巷道围岩变形监测效果良好。
    Abstract: The paper proposes support and pressure relief coordination control technique based on the rock burst reasons of coal roadway in deep mine, carries out FLAC2D numerical simulation analysis and engineering practice at 7121 face of a mine. The results indicate that rock-burst is induced by dynamic and static load superposition that the high static loads play a dominant effect while strong dynamic loads play an induced function. The support and pressure relief coordination control technique with the association of inner strong support body of high strength anchor, weak structure body of large-diameter borehole and external strong structure body of primary rock stress can improve the resistance, reduce and prevention capacity of rock-burst. The peak stress of support and pressure relief coordination scheme is 30.24 MPa, the convergence deformation of sides is 45.52 mm and the plastic region is the greatest, which has the least rock-burst hazard. The field monitoring effect of surrounding rock deformation is significant.
  • [1] 窦林名,赵从国,杨思光,等.煤矿开采冲击矿压灾害防治[M].徐州:中国矿业大学出版社,2006.
    [2] 李志民,刘振江.基于上保护层开采的千米深井冲击矿压防治[J].煤矿安全,2015,46(1):190-193.
    [3] 易恩兵,牟宗龙,窦林名,等.软及硬煤层钻孔卸压效果对比分析研究[J].煤炭科学技术,2011,39(6):1.
    [4] 李金奎,熊振华,刘东生,等.钻孔卸压防治巷道冲击地压的数值模拟[J].西安科技大学学报,2009,29(4):424-426.
    [5] 康红普,吴拥政,何杰,等.深部冲击地压巷道锚杆支护作用研究与实践[J].煤炭学报,2015,40(10):2225.
    [6] 鞠文君.冲击矿压巷道锚杆支护原理分析[J].煤矿开采,2009,14(3):59-61.
    [7] 朱云开,孟玉喜.冲击地压巷道柔性蓄能支护控制原理及应用[J].煤矿安全,2015,46(12):207-209.
    [8] 潘一山,吕祥锋,李忠华. 吸能耦合支护模型在冲击地压巷道中应用研究[J].采矿与安全工程学报, 2011,28(3):6-10.
    [9] 高明仕,窦林名,张农,等.冲击矿压巷道围岩控制的强弱强力学模型及其应用分析[J].岩土力学,2008,29(2):359-364.
计量
  • 文章访问数:  269
  • HTML全文浏览量:  0
  • PDF下载量:  0
  • 被引次数: 0
出版历程
  • 发布日期:  2017-06-19

目录

    /

    返回文章
    返回