摘要
以重庆渝北至长寿高速公路(渝长高速公路扩能)项目唐家嘴隧道下穿3条高速铁路路基段为例,建立有限元模型模拟大跨隧道开挖过程,判定大跨隧道下穿3条高铁路基段的安全性和施工方案的可行性,并提出了大跨隧道施工中应该注意的问题,供类似工程参考。
Taking the TangJiazui Tunnel of Chongqing Yubei-Changshou Expressway(YuChang Expressway Expansion)with the bases of three high-speed railways passing underneath as an example,finite element model is built to simulate the excavation process of long-span tunnel so as to judge the security of long-span tunnel with bases of three high-speed railways passing underneath and the feasibility of its construction scheme.Besides,issues that need to pay attention to in construction of long-span tunnel are proposed for reference of similar projects.
作者
郝坤
唐铀钧
HAO Kun;TANG Youjun TANG Youjun
出处
《公路交通技术》
2018年第2期75-78,83,共5页
Technology of Highway and Transport
关键词
大跨隧道
下穿
高速铁路
模拟
long-span tunnel
pass beneath
high speed railway
simulation
