深中通道西人工岛总体设计及大直径钢圆筒快速成岛技术

Overall design of western artificial island of Shenzhen-Zhongshan link and rapid island-formation technology by large-diameter steel cylinder

深圳至中山跨江通道工程是我国继港珠澳大桥之后又一个集桥、岛、隧、水下互通立交为一体的跨海交通集群工程。肩负着桥隧转换的重要使命,深中通道西人工岛能否快速、安全成岛是整个工程非常关键的一环。西人工岛功能定位高、施工工期短,在设计及施工上均有一定难度。针对西人工岛总体设计及快速成岛技术进行论证,主要包括人工岛位置、岛型、平面布置、岛壁结构钢圆筒直径、DSM辅助振沉工艺等内容,可为深海大型人工岛建设提供经验。

Shenzhen-Zhongshan River-crossing Link is another cross-sea traffic project in China integrating bridges,islands,tunnels,and underwater interchange after the Hong Kong-Zhuhai-Macao Bridge.With the important mission of bridge-tunnel conversion,whether the west artificial island can be quickly and safely formed is a key part of the whole project.The west artificial island has high functional requirements,a short build period,and certain difficulties in design and construction.This paper demonstrates the overall design of the west artificial island and rapid island-formation technology,which mainly includes the location,shape,and plane layout of the island,the diameter of the steel cylinder of the island wall structure and the DSM assisted vibration sinking construction,which can provide experience for the construction of large artificial islands in the deep sea.