摘要
王庄煤矿5109工作面为孤岛工作面,风运两巷与采空区留5 m的小煤柱,在回采过程中,小煤柱裂隙极为发育,导致巷道变形,严重影响安全生产。为此,对5109风运巷小煤柱进行喷浆封闭和注浆,提高了小煤柱的完整性和承载能力,效果显著,为类似条件下巷道加固及变形控制提供了科学依据。
Wangzhuang Coal Mine 5109 working face is isolated island, between the wind drift and transfort drift they have 5 m small pillar, in the course of coal winning,the small pillar will influence safety production seriously. So we grouting and close the small piallar and improve its ability. This support foundation in similar condition.
出处
《煤》
2007年第5期9-10,13,共3页
Coal
关键词
注浆技术
加固原理
动压巷道
grouting technology
reinforce theory
dynamic press drift
