E305工作面回风辅助巷过采空区围岩控制技术研究
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摘要
针对东掌煤业E305工作面回风辅助巷过采空区时巷道围岩破碎,巷道支护困难的现状,采用现场调研的方法对工作面围岩地质情况进行调研和分析,提出了"锚网索+高冒区注浆+U型支架"联合支护技术,并在现场进行了工业性试验。矿压监测效果表明,E305工作面回风辅助巷围岩在20d后围岩变形开始趋于稳定,巷道围岩变形量小,保证E305工作面回风辅助巷过采空区支护安全。
In view of the situation that the surrounding rock of the roadway is broken and the roadway support is difficult, the method of on-site investigation is used to investigate and analyze the geological conditions of the surrounding rock of the working face. The joint support technology of"anchor cable + high-risk grouting + U-bracket"was carried out, and industrial tests were carried out on site. The effect of mine pressure monitoring indicates that the surrounding rock deformation of the E305 working face returning rock is stable after 20 days, and the deformation of the surrounding rock of the roadway is small, which ensures the safety of the E305 working face returning auxiliary road through the goaf.
In view of the situation that the surrounding rock of the roadway is broken and the roadway support is difficult, the method of on-site investigation is used to investigate and analyze the geological conditions of the surrounding rock of the working face. The joint support technology of"anchor cable + high-risk grouting + U-bracket"was carried out, and industrial tests were carried out on site. The effect of mine pressure monitoring indicates that the surrounding rock deformation of the E305 working face returning rock is stable after 20 days, and the deformation of the surrounding rock of the roadway is small, which ensures the safety of the E305 working face returning auxiliary road through the goaf.
引文
[1]武明.掘进巷道穿采空区支护技术研究[J].煤炭与化工,2017,40(09):89-91.
[2]常春峰.五阳矿集中胶带大巷穿越采空区围岩控制技术研究[J].煤炭与化工,2016,39(07):13-16.
[3]苏学贵,宋选民,原鸿鹄,杜献杰.受上覆采空区影响的巷道群稳定性控制研究[J].采矿与安全工程学报,2016,33(03):415-422.
[4]王书文,毛德兵,潘俊锋,陈继刚,陈法兵,蓝航.采空区侧向支承压力演化及微震活动全过程实测研究[J].煤炭学报,2015,40(02):2772-2779.
[5]王东洋.大断面斜井穿越采空区支护技术研究[D].湖南科技大学,2014.
[6]姚宝珠.采空区下回采巷道围岩破坏机理及控制技术[D].中国矿业大学(北京),2014.
[7]苏清政,杨榆生,潘越,韩卫青,侯玮.整合煤矿采空区内掘进巷道注浆加固技术[J].煤炭科学技术,2013,41(07):51-53.
[8]梁文学.浅埋深煤层过采空区巷道锚固支护方法[J].北京工业职业技术学院学报,2013,12(01):15-19.
[9]李苏龙,侯玮,李新明,潘越,平建明.整合矿井采空区内掘进巷道围岩加固支护技术[J].煤炭科学技术,2012,40(11):38-41+44.
[10]李爱民,代秋巍.大冒落破碎采空区巷道加固施工技术[J].煤炭与化工,2013,36(05):109-111.
[2]常春峰.五阳矿集中胶带大巷穿越采空区围岩控制技术研究[J].煤炭与化工,2016,39(07):13-16.
[3]苏学贵,宋选民,原鸿鹄,杜献杰.受上覆采空区影响的巷道群稳定性控制研究[J].采矿与安全工程学报,2016,33(03):415-422.
[4]王书文,毛德兵,潘俊锋,陈继刚,陈法兵,蓝航.采空区侧向支承压力演化及微震活动全过程实测研究[J].煤炭学报,2015,40(02):2772-2779.
[5]王东洋.大断面斜井穿越采空区支护技术研究[D].湖南科技大学,2014.
[6]姚宝珠.采空区下回采巷道围岩破坏机理及控制技术[D].中国矿业大学(北京),2014.
[7]苏清政,杨榆生,潘越,韩卫青,侯玮.整合煤矿采空区内掘进巷道注浆加固技术[J].煤炭科学技术,2013,41(07):51-53.
[8]梁文学.浅埋深煤层过采空区巷道锚固支护方法[J].北京工业职业技术学院学报,2013,12(01):15-19.
[9]李苏龙,侯玮,李新明,潘越,平建明.整合矿井采空区内掘进巷道围岩加固支护技术[J].煤炭科学技术,2012,40(11):38-41+44.
[10]李爱民,代秋巍.大冒落破碎采空区巷道加固施工技术[J].煤炭与化工,2013,36(05):109-111.