摘要
以北京轨道交通6号线一期暗挖区间隧道为工程背景,运用数值模拟技术研究了不同埋深条件下地铁区间暗挖隧道施工对洞周地层的扰动背景,数值计算结果基本与实验实测数据吻合,计算模型很好地反映了隧道的受力特点,揭示了隧道埋深与隧道拱顶的应力变化规律,同时还发现地表深降与隧道埋深呈负相关性的规律,对同类工程有一定指导意义。
Taking the mined tunnel in first phase project of NO.10line of Beijing metro as the project background,the numerical simulation technique is used in this article to study the strata disturbance of tunnel excavations under different buried depthes,and the results of numerical simulation are in agreement with the experimental data.The calculation model well reflects the tunnel stress characteristics,revealing the variation between tunnel buried depth and tunnel vault stress.Meanwhile,it has also revealed the the negative correlation rules between surface settlement and the tunnel depth,which has certain guiding significance for similar constructions.
作者
王飞
薛晓辉
刘盛辉
WANG Fei(Shaanxi Railway Institute, Weinan Shaanxi 714099, China)
出处
《长春工程学院学报（自然科学版）》
2016年第1期25-29,33,共6页
Journal of Changchun Institute of Technology：Natural Sciences Edition
基金
陕西铁路工程职业技术学院项目基金(2014-60)
关键词
地铁区间
暗挖隧道
埋深
应力升高区
地表沉降槽
metro sections
mined tunnel
burial depth
stress heightening area
settlement trough
