摘要
为了解决同华煤矿安稳斜井过特大突出孔洞对巷道掘进带来的安全问题,对过特大突出孔洞技术进行了研究,采用了"密闭+注浆+拦截孔+金属骨架"综合技术,采用拱形临时支护结合浅掘浅进最后混凝土体永久支护施工方法,详细阐述了过孔洞的工艺技术,实现了特大突出孔洞的安全掘进。
In order to solve the safety issues of roadway excavation caused by crossing especially big outburst holes of Anwen inclined shaft in Tonghua coal mine, the technology of crossing especially big outburst holes was researched based on comprehensive technique of ＂sealing ＋ grouting ＋ interception hole ＋ metal skeleton＂. Adopting the construction method of arched temporary support combi- ning with shallow tunneling and shallow advancing, and the final permanent support with concrete body, the technology of crossing holes is daborated, which achieves the safety tunneling of especially big outburst holes.
出处
《煤矿安全》
CAS
北大核心
2012年第8期50-52,共3页
Safety in Coal Mines
关键词
特大突出孔洞
密闭
注浆
拦截孔
金属骨架
永久支护
掘进
especially big outburst holes
sealing
grouting
interception hole
metal skeleton
permanent support
tunneling
