摘要
由于岩层松散破碎,加上断层和裂隙发育,渗、漏水严重,本来已经支护好的坑道又出现塌方,坍塌物将木支架压弯压折。补支护后,该区域又出现了沉降。在处理过程中进行了大胆尝试,顺利解决了这一问题。
Because of loose and broken of the stratum,in addition to fault and crack developed,many seepage and leak,supported tunnel emerged to landslide,so that wood support was curved and broken by pressure.After supplementary support,the area emerged to sink.We bold attempted to use under pining to deal with it,and solved this problem successfully.
出处
《探矿工程（岩土钻掘工程）》
2009年第S1期400-401,404,共3页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
坑道
支护
沉降
坍塌
tunnel
support
underpinning
sink
