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

松软煤帮巷道破坏机理及高强预应力支护技术

樊勇, 张东峰

樊勇, 张东峰. 松软煤帮巷道破坏机理及高强预应力支护技术[J]. 煤矿安全, 2014, 45(1): 71-73,77.
引用本文: 樊勇, 张东峰. 松软煤帮巷道破坏机理及高强预应力支护技术[J]. 煤矿安全, 2014, 45(1): 71-73,77.
FAN Yong, ZHANG Dongfeng. The Soft Coal Roadway Damage Mechanism and High Prestressed Forced Supporting Technology[J]. Safety in Coal Mines, 2014, 45(1): 71-73,77.
Citation: FAN Yong, ZHANG Dongfeng. The Soft Coal Roadway Damage Mechanism and High Prestressed Forced Supporting Technology[J]. Safety in Coal Mines, 2014, 45(1): 71-73,77.

松软煤帮巷道破坏机理及高强预应力支护技术

The Soft Coal Roadway Damage Mechanism and High Prestressed Forced Supporting Technology

  • 摘要: 根据五一煤矿采区巷道两帮强度低,围岩变形量大的问题,基于弹塑性力学及巷道围岩控制理论,采用理论分析及数值计算的方法,对松软煤帮巷道的破坏机理及高强预应力支护体系进行了研究,得出了巷道围岩连锁失稳、破坏机理及其相关控制技术。工业性试验表明,采用高强预应力支护技术后,顶板下沉量为59 mm,两帮移近量为230 mm,离层量控制在25 mm以内,可以较好控制松软巷帮的变形及顶板的离层变形,提高巷道的整体稳定性。
    Abstract: According to the problem of low strength and large deformation in Wuyi Coal Mine roadway, the methods of theoretical calculation and numerical simulation were applied to analyze the failure mechanism and high-strength and pretension supporting technology based on the elasticity-plasticity mechanics and surrounding rock control theory. The conclusion obtained the damage mechanism and control technology of roadway rock. The industrial test showed that the roadway sides and roof-to-floor convergence were 230 mm and 59 mm respectively, the separation convergence were also controlled within 25 mm. The conclusion showed that roadway deformation and roof abscission layer deformation could be well controlled under the technology that high-stress and pretension bolting supporting, which improved the stability of the roadway integrally.
  • [1] 陈炎光,钱鸣高.中国煤矿采场围岩控制[M].徐州:中国矿业大学出版社,1994.
    [2] 郝峻青,赵军.松软破碎顶板巷道支护技术研究与应用[J].煤炭科学技术,2011,39(3):18-21.
    [3] 李磊,柏建彪,王襄宇,等.松软破碎煤巷注浆加固技术[J].煤炭科学技术,2010,38(8):5-9.
    [4] 郭之宝.大倾角松软突出煤层煤巷锚杆支护技术与实践[J].煤炭科学技术,2006,34(2):9-11.
    [5] 卢学锋,张红军.松软煤帮巷道支护方案的比较分析[J].矿业安全与环保,2011,38(3):45-51.
    [6] 程伟,柏建彪.松软厚煤层巷道围岩稳定原理与控制技术研究[J].煤炭科技,2010(2):4-6.
    [7] 葛志强,王东.松软复合顶板巷道锚固技术数值模拟[J].辽宁工程技术大学学报,2010,29(4):537-540.
    [8] 张农,侯朝炯.深井三软煤巷锚杆支护技术研究[J].岩石力学与工程学报,1999,18(4):437-440.
    [9] 张农,高明仕.煤巷高强预应力锚杆支护技术与应用[J].中国矿业大学学报,2004,33(5):524-527.
    [10] 钱鸣高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2003.
    [11] 张农.高强预应力支护技术及应用[J].煤矿支护,2004(1):15-17.
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  • 发布日期:  2014-01-19

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