阳泉二矿大采深巷道围岩控制技术研究
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摘要
依托阳泉二矿大采深条件下020201工作面轨道顺槽支护工程实际,采用现场调研的方法对在原有支护形式下的巷道破坏进行了分析,利用现场钻孔窥视的方法,确认了巷道围岩破坏深度。提出了新的巷道支护方式,对巷道围岩破坏程度进行了现场原位钻孔窥视,在工作面回采期间,对巷道表面位移进行了监测,巷道表面位移处于安全使用范围之内,有效保障了巷道的稳定性。
Relying on the practice of roadway support engineering in Yangquan No. 2 Coal Mine under the condition of large mining depth, the failure depth of surrounding rock in roadway was confirmed by field investigation. A new way of roadway support is put forward. The damage degree of surrounding rock in roadway is peeped by borehole in situ. During the mining period of working face, the displacement of roadway surface is monitored. The displacement of roadway surface is in the safe use range, and the stability of roadway is effectively guaranteed.
Relying on the practice of roadway support engineering in Yangquan No. 2 Coal Mine under the condition of large mining depth, the failure depth of surrounding rock in roadway was confirmed by field investigation. A new way of roadway support is put forward. The damage degree of surrounding rock in roadway is peeped by borehole in situ. During the mining period of working face, the displacement of roadway surface is monitored. The displacement of roadway surface is in the safe use range, and the stability of roadway is effectively guaranteed.
引文
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[2]侯朝炯.深部巷道围岩控制的关键技术研究[J].中国矿业大学学报,2017,46(05):970-978.
[3]袁越,王卫军,袁超,余伟健,吴海,彭文庆.深部矿井动压回采巷道围岩大变形破坏机理[J].煤炭学报,2016,41(12):2940-2950.
[4]陈登红.淮南矿区深部典型回采巷道围岩变形破坏特征与稳定性控制研究[A]..第十届全国煤炭工业生产一线青年技术创新文集[C].:中国煤炭学会,2016:9.
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