摘要
重庆市轨道交通六号线红旗河沟车站车站主体隧道断面开挖宽度19.921m,高度20.04m,开挖断面面积约为353.36m2。拱顶埋深17.9-20.0m,属于浅埋暗挖单跨大断面隧道。隧道周边环境复杂,施工难度大,风险系数较高。施工时采用复合式衬砌结构,双侧壁导坑法施工。以该工程设计和施工方案为依托,详细介绍了复杂地质条件、结构形式、施工概况等。
At Hongqihegou station of Chongqing Light Rail No.6 Project,the excavation width of the main tunnel is 19.921m,the height is 20.04m,and the area is 353.36m2.The cover rock masses is 17.9 to 20.0m.It is a shallow-berried single-span tunnel project.The surrounding of the tunnel is complex,and the risk factor is high.The New Austrian Tunneling Method is used in design of station,construction composite lining is employed for the station structure,and the construction technique of double-side-drift buried excavation is adopted.By the construction design and construction scheme,it introduces the complex geologic condition,main structure and construction survey and so on.
出处
《西部探矿工程》
CAS
2011年第6期192-196,共5页
West-China Exploration Engineering
关键词
轨道
大断面隧道
浅埋暗挖
双侧壁导坑法
light rail
large-section tunnel
shallow-berried digging
double-side-drift pit
