摘要
梅西湖隧道基坑k24+510～560段上跨地铁2号线,基坑底部离地铁衬砌只有3.3 m,为了基坑及地铁衬砌的安全,采用上部桩锚+下部土钉墙的支护型式度过本段基坑,并用midas数值计算软件对基坑开挖进行计算,得出了地铁衬砌的竖向位,以此来探讨地铁衬砌的安全性,对类似工程的设计和施工有一定的借鉴意义。
The foundation ditch of Mei xihu tunnel in k24 ＋510-560 segment across the Metro Line 2,the bottom of the foundation ditch is only 3.3 m away from the subway tunnel.In order to pit and subway safe lining,it adopts the supporting type of the pile anchor and soil nail wall to pass the period of foundation pit.The software of the excavation is calculated by Midas numerical calculation to obtain the vertical displacement of Metro lining,by which to explore the safety of lining structure of metro.This paper has certain reference significance to the design and construction of similar engineering.
出处
《公路工程》
北大核心
2013年第4期140-143,161,共5页
Highway Engineering
关键词
隧道基坑
地铁衬砌
桩锚支护
位移
安全性
Foundation ditch of tunnel
Lining of subway tunnel
Pile anchor bracing
Displacement
Safety
