深港西部通道深圳侧接线工程隧道结构盖挖半逆作法设计与施工特点  

A Cover-excavation & Semi-reversed Method Design of Shenzhen Side Connecting Line Tunnel Structure of Shengang West Passageway & Its Construction Characteristics

作　　者：丁兴国[1] 

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海200092

出　　处：《中国市政工程》2016年第2期70-71,75,共3页China Municipal Engineering

摘　　要：深港西部通道深圳侧接线工程是国内首条位于城市主干道的特大型现浇箱形隧道,是通过一线口岸深港过境车辆的专用通道,设计行车速度80 km/h,按双向6车道高速公路标准建设。主线全长约4.48 km,其中下沉式道路为浅埋箱式隧道结构,长约3.08 km。针对"盖挖半逆作法"施工工艺在深港西部通道深圳侧接线工程实施过程中的成功经验,阐述本工程的设计和施工要点。With the engineering background of Shenzhen side connecting line project of Shengang west passageway,it is regarded as the first domestic super-large scale cast-in-situ box-shaped tunnel located under the main urban road,and it is the exclusive passageway for transit vehicle from Shenzhen to Hongkong on the West Passageway First Line Port with the designed vehicle speed of 80 km/h and two-way six lanes expressway standards.The whole length of main line is about 4.48 km,among which the sinking road is shallow-buried box-shaped tunnel structure with the approximate length of 3.08 km.Aiming at the successful experience of the construction technique of cover-excavation & semi-reversed method applied in the implementation process of this project,the design and construction key points are put forward in detail.

关 键 词：下沉式道路 盖挖半逆作法 围护结构 基坑 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]