湖泊地段高架桥充砂围堰施工关键技术研究

Research on Key Construction Technology of Filling Sand Cofferdam in Lake District Viaduct

通顺大道高架桥跨越珠山湖水系的主要湖泊——烂泥湖,武汉环保部门对水域监管极为严格,为保护环境、高效施工,采取膜袋充砂围堰,抽水清淤后填筑施工便道及平台的施工方案,该方案不仅保护了湖水环境、降低了施工成本,同时也具有施工机械化程度高、对软弱地基适应能力强且施工速度快的特点。

Smooth road viaduct spans the mud lake,which is the main lake of the Zhushan lake system.Wuhan environmental protection department is very strict with the water of the lakes,and very high requirements is put forward on environmental protection.To protect the environment,and make construction efficient,the film bag filling sand cofferdamis taken,and the scheme of pumping desilting after filling construction road and platform construction is selected,which cannot only protect the water environment,reduce the construction cost,but also has the advantages of high mechanization degree of construction,strong adaptability to soft ground and fast construction speed.