杨军, 乔林珂, 周开放, 程小远, 鲍甜甜. 急倾斜特厚高岩墙诱发冲击地压机理及防治措施[J]. 中国矿业, 2017, 26(2): 112-116,121.
    引用本文: 杨军, 乔林珂, 周开放, 程小远, 鲍甜甜. 急倾斜特厚高岩墙诱发冲击地压机理及防治措施[J]. 中国矿业, 2017, 26(2): 112-116,121.
    YANG Jun, QIAO Linke, ZHOU Kaifang, CHENG Xiaoyuan, BAO Tiantian. Research on the mechanism and control measures of rock burst in steeply-inclined and extremely thick coal dike[J]. CHINA MINING MAGAZINE, 2017, 26(2): 112-116,121.
    Citation: YANG Jun, QIAO Linke, ZHOU Kaifang, CHENG Xiaoyuan, BAO Tiantian. Research on the mechanism and control measures of rock burst in steeply-inclined and extremely thick coal dike[J]. CHINA MINING MAGAZINE, 2017, 26(2): 112-116,121.

    急倾斜特厚高岩墙诱发冲击地压机理及防治措施

    Research on the mechanism and control measures of rock burst in steeply-inclined and extremely thick coal dike

    • 摘要: 针对乌东煤矿南采区急倾斜煤层特殊赋存形式和开采方式,建立了诱发冲击地压的“悬臂梁”模型,得出岩墙内部能量值与岩墙有效弯曲长度三次方成正比,并对此采用相应的空间综合治理措施。即对岩墙上部+500~+736m范围进行地面深孔爆破预裂,改变岩体储能条件;而在岩墙底部+475~+515m水平实施注水和深孔爆破措施,降低岩墙底脚部位煤岩层冲击倾向性。通过ARAMIS M/E微震监测系统进行效果检验,结果表明上述措施明显改善了岩墙内部储能方式,降低了冲击风险。

       

      Abstract: A cantilever beam model which induces the rockburst is established aiming at the especial mode of occurrence of the steep seam and mining way. Then a corresponding comprehensive control measure is proposed by the result of the model that the energy inside the middle rockwall is proportional to the cube of effective bending length. The energy-saving condition can be changed by the deep hole blasting on the ground at the range of +500~+736m along the rockwall. besides, the rockburst tendency will reduce by the measures which is composed of water pouring and deep hole blasting at range of +475~+515m. At last, it indicates that this series of measures reduce the risk of rockburst obviously with the technology of ARAMIS M/E.

       

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