摘要
基坑开挖对临近高铁桥墩的位移扰动将直接影响铁路运营的安全性和舒适性。以实际工程为背景,利用MIDAS GTS有限元软件,模拟了基坑开挖的施工过程,对比分析了同一基坑开挖对不同距离的既有高铁桥墩位移的影响,总结了影响规律,可为临近高铁桥墩的基坑开挖设计及施工提供借鉴和参考。
The displacement disturbance of foundation pit excavation to the pier of nearby high-speed railway will directly affect the safety and comfort of railway operation.Based on the actual project,this paper simulates the construction process of foundation pit excavation by using MIDAS GTS finite element software,and compares and analyses the influence of the same foundation pit excavation on the displacement of existing pier of high-speed railway at different distances.Some influence rules are concluded,which can provide some reference for similar projects such as excavation design and construction of foundation pits near high-speed railway piers.
作者
赵娜
ZHAO Na(Nanjing Design Institute of China Railway Shanghai Design Institute Group Co.,Ltd.,Nanjing 210000,China)
出处
《北方交通》
2020年第1期27-30,共4页
Northern Communications
关键词
基坑开挖
高铁桥墩
位移
有限元
Foundation pit excavation
High-speed railway bridge pier
Displacement
Finite element
