阳煤五矿集中回风大巷锚网喷联合支护技术研究及应用
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摘要
锚网喷联合支护能够综合发挥锚网支护和喷浆支护的优势,对煤矿巷道围岩控制效果良好。本文将锚网喷联合支护技术应用于阳煤五矿8#煤试采工作面集中回风巷,针对岩巷段和煤巷段提出不同断面形状及支护参数;然后对锚网喷支护参数进行了校核,并将锚网喷联合支护方案应用于工程现场。现场观测显示:巷道最大顶底板变形量和最大两帮变形量均在允许的范围内,实现了巷道的安全快速掘进。
Bolting and shotcreting combined support can comprehensively exert the advantages of bolting and shotcrete support, and has good effect on surrounding rock of mine roadway. In this paper, the combined support technology of bolt-net-spraying is applied to the 8# coal mining face concentrated return Air Lane, the different section shape and supporting parameters are put forward according to the Rock roadway section and the Coal Roadway section, and then the bolting net Shotcrete support parameter is checked, and the combined bolting and shotcreting support scheme is applied to the project site. The field observation shows that the deformation of the maximum roof and the maximum deformation of the roadway is within the allowable range and the safe and fast excavation of the roadway is realized.
Bolting and shotcreting combined support can comprehensively exert the advantages of bolting and shotcrete support, and has good effect on surrounding rock of mine roadway. In this paper, the combined support technology of bolt-net-spraying is applied to the 8# coal mining face concentrated return Air Lane, the different section shape and supporting parameters are put forward according to the Rock roadway section and the Coal Roadway section, and then the bolting net Shotcrete support parameter is checked, and the combined bolting and shotcreting support scheme is applied to the project site. The field observation shows that the deformation of the maximum roof and the maximum deformation of the roadway is within the allowable range and the safe and fast excavation of the roadway is realized.
引文
[1]李为腾,李术才,玄超,王琦,王新,邵行.高应力软岩巷道支护失效机制及控制研究[J].岩石力学与工程学报,2015,34(09):1836-1848.
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[3]王宏伟,姜耀东,赵毅鑫,祝捷,单如月.软弱破碎围岩高强高预紧力支护技术与应用[J].采矿与安全工程学报,2012,29(04):474-480.
[4]张永杰,柏建彪,李磊,陈军,郭刚,智庆国.复合顶板松软煤层锚网喷支护实践[J].中国煤炭,2010,36(05):53-57.
[5]李少本,杨晓东.软岩巷道锚网喷支护实践[J].中州煤炭,2005(05):33-34+36.
[2]张德宝,张智纲.弱胶结软岩巷道锚网喷架联合支护技术[J].辽宁工程技术大学学报(自然科学版),2015,34(04):447-452.
[3]王宏伟,姜耀东,赵毅鑫,祝捷,单如月.软弱破碎围岩高强高预紧力支护技术与应用[J].采矿与安全工程学报,2012,29(04):474-480.
[4]张永杰,柏建彪,李磊,陈军,郭刚,智庆国.复合顶板松软煤层锚网喷支护实践[J].中国煤炭,2010,36(05):53-57.
[5]李少本,杨晓东.软岩巷道锚网喷支护实践[J].中州煤炭,2005(05):33-34+36.