轨道交通换乘站一次扣拱暗挖逆作法群洞效应分析  

A Multi-cavities Effect Analysis of Underground Top-down Excavation with Cast-in-situ Arch Method in Rail Transit Transfer Station

作　　者：王智强[1] 

机构地区：[1]中铁十八局集团第三工程有限公公司,河北涿州072750

出　　处：《中国市政工程》2014年第2期65-67,共3页China Municipal Engineering

摘　　要：介绍长春轨道交通L1解放大路车站主体在一次扣拱暗挖逆作法施工中,群洞效应对地表的影响。主要分析因群体导洞开挖步序不同,对地表及土体产生沉降值大小变化的差异。最终通过模拟分析,确定合理的开挖步序。Taking Changchun rail transit L1 Jiefang Ave. Station project for example, the multicavities effect impact on the earth's surface is discussed when its main body is constructed by once buckle arch underground excavation topdown method. The settlement values differences of surface and soil body are analyzed due to different pilot tunnel excavation step sequences. Finally, the reasonable excavation step sequence is determined by simulation analysis.

关 键 词：轨道交通车站 一次扣拱暗挖逆作法 群洞效应 导洞开挖步序 

分 类 号：U231.4[交通运输工程—道路与铁道工程]