摘要
广珠西线三期工程深湾隧道为三车道大跨度连拱隧道,进口浅埋段下穿高压电塔,施工风险较大,需进行特殊设计和施工。利用Midas/GTS有限元程序建立地层-隧道-电塔桩基的模型,对深湾隧道下穿电塔施工全过程进行三维数值模拟,分析了电塔与隧道相互之间的影响。结合现场监测数据与数值模拟结果,对加固和施工方案实施效果进行了评价,可为类似工程提供参考。
Being the third-phase project of the G uangzhou-Zhuhai West Line, Shenwan Tunnel Project is a three-lane large-span multi-arch tunnel. The beginning segment of the shallow tunnel is built beneath the foundation of an electric tower. This project has high construction risk, and needs for special design and construction. In this paper, the strata -tunnel-piles of electric tower model is established by Midas/ GTS finite element program to simulate the whole construction process of Shenwan Tunnel beneath electrical towers in three-dimension, and analyze the effects of electrical towers and tunnels between each other. Based on the field monitoring data and the results of numerical simulation, the implementation effect of reinforcement and construction program is evaluated, which can be a reference for the similar projects.
出处
《公路》
北大核心
2014年第8期278-282,共5页
Highway
关键词
大跨度隧道
浅埋隧道
高压电塔
数值分析
沉降值
large-span tunnel
shallow buried tunnel
high voltage tower
numerical analysis； settlement value
