摘要
目前我国开展地铁建设的城市范围不断增大,地铁暗挖隧道工程比例逐渐增加,富水地层暗挖隧道也越来越多。富水黄土暗挖隧道施工,极易发生涌水及坍塌现象。西安地铁六号线TJSG-19标钟楼站—大差市区间正线暗挖隧道左线为标准断面,右线为大断面,通过横通道进行正线暗挖隧道施工,横通道暗挖隧道处于富水黄土地层。受正线暗挖隧道断面的影响,横通道暗挖隧道截面需完成小断面与大断面的断面转化,施工中具有地质复杂、风险大、技术难度大等特点,合理有效的施工技术及监测控制是本工程的重点。
At present,China′s urban area of subway construction is constantly expanding,and the proportion of underground tunneling is increasing gradually,and the number of underground tunnels in water-rich strata is also increasing.The tunnel construction in water-rich loess is prone to water inrush and collapse.The left line of the tunnel is a standard section,and the right line is a large section in Zhonglou Station-Dacha shi of Xi′an Metro line 6 lot TJSG-19.The main line is excavated through the cross passage,the mined cross passage is in the water-rich loess stratum.Due to the influence of the cross section of the main line,the cross section of the excavated by the mined method needs to be transformed from the small section to the large section,which is characterized by geological complexity,high risk and technical difficulty,reasonable and effective construction technology and monitoring control is the focus of the project.
作者
唐喜奎
TANG Xikui(China Railway 20 th Bureau Group 5 th Engineering Co.Ltd.,Kunming 650200)
出处
《现代隧道技术》
EI
CSCD
北大核心
2020年第S01期1135-1139,共5页
Modern Tunnelling Technology
基金
中铁二十局集团第五工程有限公司研发项目(YF1905SD05D).
关键词
富水黄土
断面转化
监测控制
施工技术
Water-rich loess
Section transformation
Monitoring and control
作者简介
唐喜奎(1987-),男,工程师,主要从事地铁施工技术工作,E-mail:727334930@qq.com.
