摘要
盾构与浅埋暗挖隧道小净距并行施工是城市轨道交通建设中的难点,为更好地研究并行近接施工的力学效应,以某市轨道交通区间盾构与浅埋暗挖隧道并行为背景,采用数值分析软件建立模型,分"盾构先行"和"浅埋暗挖先行"两种情况,对施工产生的位移、土体应力及支护结构内力进行对比分析,为施工提供预判依据。
The construction of shield and underground excavation in parallel overlapped section of small clear spacing tun-nelling is the difficulty in the construction of urban rail transit.In order to study the mechanical effects of parallel overlap-ping segments,this paper is based on the parallel overlapping construction between shied and shallow buried tunnel in a rail transit section of a city,using numerical analysis software to build the model,two kinds of excavation sequence of a shield in advance”and“shallow buried excavation in advance”are analyzed.The displacement,soil stress and the internal force of the supporting structure are compared and analyzed to provide the prejudging basis for the construction.
作者
陈哲宏
Chen Zhehong(China Railway 19th Bureau Group Rail Transit Engineering Co.Ltd.,Beijing 101300,China)
出处
《铁道建筑技术》
2017年第9期62-65,83,共5页
Railway Construction Technology
基金
中铁十九局集团有限公司科技研究开发计划项目(15-10A)
关键词
小净距
并行
盾构
浅埋暗挖
模拟分析
small clear spacing
parallel
shield
underground excavation with shallow overburden
simulation analysis
