冲刷带构造段巷道支护优化效果监测
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摘要
山西潞安集团李村煤矿1301工作面辅助回风顺槽在掘进过程中揭露煤层冲刷带,由于冲刷带影响范围内巷道围岩相对软弱破碎,继续采用原有支护方案将会出现锚杆失效的问题。因此设计比选出优化支护方案,对新支护方案进行了现场矿压监测,以此来对支护方案进行检验,为类似条件下的巷道围岩控制提供借鉴。
The 1301 working face of the Licun coal mine of Shanxi Lu′an group has been exposed to the coal seam scouring zone during the excavation process. Due to the influence of the scouring zone,the surrounding rock of the roadway is relatively weak and broken, and if the original support scheme will continue to be used,anchor will lose efficacy. Therefore,designed and choosed the optimal support scheme. Then carried out on-site mine pressure monitoring for the new support scheme, so as to test the support scheme and provide reference for the surrounding rock control under similar conditions.
The 1301 working face of the Licun coal mine of Shanxi Lu′an group has been exposed to the coal seam scouring zone during the excavation process. Due to the influence of the scouring zone,the surrounding rock of the roadway is relatively weak and broken, and if the original support scheme will continue to be used,anchor will lose efficacy. Therefore,designed and choosed the optimal support scheme. Then carried out on-site mine pressure monitoring for the new support scheme, so as to test the support scheme and provide reference for the surrounding rock control under similar conditions.
引文
[1]吴家文.大断面软岩巷道支护技术研究[D].湘潭:湖南科技大学, 2015.
[2]周志利,柏建彪,肖同强,等.大断面煤巷变形破坏规律及控制技术[J].煤炭学报,2011,36(4):556-561.
[3]李亚辉.化乐煤矿泥化软岩巷道支护及快速掘进技术研究[D].徐州:中国矿业大学,2015.
[4]李磊.大断面托顶煤巷道灾变机制与控制技术研究[D].徐州:中国矿业大学,2013.
[5]张占涛.大断面煤层巷道围岩变形特征与支护参数研究[D].北京:煤炭科学研究总院,2009.
[2]周志利,柏建彪,肖同强,等.大断面煤巷变形破坏规律及控制技术[J].煤炭学报,2011,36(4):556-561.
[3]李亚辉.化乐煤矿泥化软岩巷道支护及快速掘进技术研究[D].徐州:中国矿业大学,2015.
[4]李磊.大断面托顶煤巷道灾变机制与控制技术研究[D].徐州:中国矿业大学,2013.
[5]张占涛.大断面煤层巷道围岩变形特征与支护参数研究[D].北京:煤炭科学研究总院,2009.