新建三洞隧道下穿铁路路基影响数值分析
NUMERICAL ANALYSIS OF INFLUENCE OF NEW THREE-HOLE TUNNEL CROSSING RAILWAY SUBGRADE
郑聪1
作者信息
- 1. 中交第二公路勘察设计研究院有限公司,武汉 430056
- 折叠
摘要
为探究三洞隧道下穿铁路路基的影响,文中以G0711乌鲁木齐—尉犁段高速公路天山胜利隧道出口下穿南疆线鱼儿沟至焉耆高坡区段铁路路基工程为基础,通过三维有限元模拟计算方法,建立相关数值模型,研究表明采取各项加固措施后,在三洞隧道施工时,铁路路基及轨道变形均小于相应的控制标准,保证了新建隧道和既有铁路路基的安全,为类似浅埋隧道下穿铁路路基工程提供一定的参考.
Abstract
A practical engineering project is taken to explore the impact of three-hole tunnel crossing railway sub-grade.The numerical model has been established through three-dimensional finite element simulation calculation method.The results show that after adopting various reinforcement measures,the deformation of the railway sub-grade and track during the tunnel crossing is less than control standards,ensuring the safety of the new tunnel and existing railway subgrade,which may provide the reference for similar shallow buried tunnel crossing railway sub-grade engineering.
关键词
三洞隧道/铁路路基/数值分析Key words
three-hole tunnel/railway subgrade/numerical analysis引用本文复制引用
基金项目
新疆维吾尔自治区重大科技专项(2020A03003)
出版年
2024
NETL
NSTL
万方数据