江中明挖地铁车站的围护结构设计

广州地铁3号线沥滔站的站位确定为跨珠江支流设置。设计采用回填筑岛的围堰形式,围护结构采用地下连续墙,支撑体系采用钢管支撑结合型钢腰梁的形式。目前,江中段车站土建工程已竣工,从安全、质量、经济技术与工期等方面都收到了良好的效果,可为类似工程的设计与施工提供参考与借鉴。

The Design of Surrounding Support Structure For an Open Cut Metro Station in a River

The Lijiao Station of Guangzhou Metro Line 3 has to span a tributary of the Pearl River. In the design, cofferdam form is adopted with an island built by filling back earth in the river, the underground continuous wall is used as the surrounding support structure with steel pipe support and steel shape waist beam as its supporting system. At present, the part of civil engineering work of the station in the river has been completed. Good effect has been achieved in such aspects as of safety, quality, cost effectiveness, technology, work period and so on. It can be taken as reference for similar projects.