近距离煤层综采工作面倒回支架回撤技术
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摘要
针对戊9-10-22180工作面收尾时支架不能按常规回撤,且近距离煤层顶板失稳,从工作面开始上网到最终设备回撤,提出了倒回支架回撤方案,并采用回撤通道"锚网+锚索"联合支护和"非锚区无坑木支护"工艺,优化抹角施工参数等成套技术。结果表明,倒回支架技术合理,回撤通道联合支护和抹角施工参数能够满足设备回撤,卸压护巷省时省料,确保工作面安全快速回收,可为同类型条件工作面回撤提供参考。
As in the equipment cannot be routinely retraced in V9-10-22180 working face during ending period,and close distance coal seam roof instability occurs,from the working face meshing to the final device retracement, the backward retracing scheme for support is proposed,and a combined support technology with anchor mesh and anchor cable is used for the retreat channel and non-timber support for the non-anchor section,construction parameters of wipe-corner is optimized. The results show that,the support backward retracing technology is reasonable,the combined support of the retreat channel and the construction parameters of the wipe corner can meet the requirements of the equipment retracing,save time and materials for the pressure-relief roadway protection and ensure the safe and rapid retracing of the working face,which can provide references for similar working faces.
As in the equipment cannot be routinely retraced in V9-10-22180 working face during ending period,and close distance coal seam roof instability occurs,from the working face meshing to the final device retracement, the backward retracing scheme for support is proposed,and a combined support technology with anchor mesh and anchor cable is used for the retreat channel and non-timber support for the non-anchor section,construction parameters of wipe-corner is optimized. The results show that,the support backward retracing technology is reasonable,the combined support of the retreat channel and the construction parameters of the wipe corner can meet the requirements of the equipment retracing,save time and materials for the pressure-relief roadway protection and ensure the safe and rapid retracing of the working face,which can provide references for similar working faces.
引文
[1]张文涛,陈群忠,尹胜波,等.综采工作面回撤前收尾阶段施工技术研究[J].煤炭工程,2013,45(8):47-49.
[2]张睿,钟南宁,于泳.复杂构造条件下综采工作面收尾技术研究与实践[J].煤炭工程,2014,46(11):42-45.
[3]赵永康,张公慈.“三软”煤层综采工作面回收实践与探索[J].内蒙古煤炭经济,2016(17):108.
[4]李峰.大采高综采工作面设备回撤期间回收通道顶板控制研究[J].内蒙古煤炭经济,2016(10):113-114.
[5]祁同新.煤矿综采工作面设备快速回撤施工工艺研究与应用[J].煤矿机械,2017(8):77-78.
[6]钟南宁,张睿,崔天宇.综采工作面收尾通道支护技术探讨[J].中州煤炭,2015(5):74-76.
[7]夏会辉,陈建忠,刘兴全,等.缓倾斜煤层综采工作面设备回撤技术实践[J].煤矿开采,2013(3):37-39.
[8]李召志,谢军峰,段乐乐.偃龙矿区“三软”煤层综采工作面回撤技术的研究与实施[J].煤炭技术,2013(9):88-90.
[9]郑绪坤.大采高综采工作面末采回撤技术研究[J].煤炭与化工,2015(4):52-55.
[10]马陈社.大采高综采工作面末采及设备回撤期间的顶板控制实践[J].山西煤炭,2014(2):51-53.
[11]王国举,赵伏军,唐辉雄,等.综采工作面回撤通道顶板结构及支护技术[J].矿业工程研究,2013(3):15-19.
[2]张睿,钟南宁,于泳.复杂构造条件下综采工作面收尾技术研究与实践[J].煤炭工程,2014,46(11):42-45.
[3]赵永康,张公慈.“三软”煤层综采工作面回收实践与探索[J].内蒙古煤炭经济,2016(17):108.
[4]李峰.大采高综采工作面设备回撤期间回收通道顶板控制研究[J].内蒙古煤炭经济,2016(10):113-114.
[5]祁同新.煤矿综采工作面设备快速回撤施工工艺研究与应用[J].煤矿机械,2017(8):77-78.
[6]钟南宁,张睿,崔天宇.综采工作面收尾通道支护技术探讨[J].中州煤炭,2015(5):74-76.
[7]夏会辉,陈建忠,刘兴全,等.缓倾斜煤层综采工作面设备回撤技术实践[J].煤矿开采,2013(3):37-39.
[8]李召志,谢军峰,段乐乐.偃龙矿区“三软”煤层综采工作面回撤技术的研究与实施[J].煤炭技术,2013(9):88-90.
[9]郑绪坤.大采高综采工作面末采回撤技术研究[J].煤炭与化工,2015(4):52-55.
[10]马陈社.大采高综采工作面末采及设备回撤期间的顶板控制实践[J].山西煤炭,2014(2):51-53.
[11]王国举,赵伏军,唐辉雄,等.综采工作面回撤通道顶板结构及支护技术[J].矿业工程研究,2013(3):15-19.