窄煤柱沿空巷道切顶卸压护巷技术应用
Application of Roof Cutting,Pressure Relief and Roadway Protection Technology for Narrow Coal Pillar Goaf
盛磊1
作者信息
- 1. 淮北矿业股份有限责任公司芦岭煤矿,安徽 淮北 235000
- 折叠
摘要
为了降低Ⅱ888工作面回采期间沿空巷道矿压显现剧烈程度,提出在Ⅱ888风巷内进行预裂爆破切顶卸压试验.通过理论分析,合理确定了爆破钻孔的参数,并在现场进行了工业试验.试验效果显示,巷道的围岩变形明显改善,巷道修复量降低,高效生产技术水平提升.
Abstract
In order to reduce the severity of mining pressure manifestation along the goaf roadway during the mining period ofⅡ888 working face,it is proposed to conduct a pre splitting blasting roof cutting and pressure relief test in the Ⅱ888 air roadway.Through theoretical analysis,the parameters of blasting drilling were reasonably determined,and industrial experiments were conducted on site.The experimental results show that the deformation of the surrounding rock in the tunnel has been significantly improved,the amount of tunnel repair has been reduced,and the level of efficient production technology has been improved.
关键词
窄煤柱/沿空巷道/矿压显现/切顶卸压/爆破钻孔Key words
narrow coal pillar/along the goaf roadway/mining pressure manifestation/roof cutting and pressure relief/blasting drilling引用本文复制引用
出版年
2024
NETL
NSTL
万方数据