1 工程概述淮河入海水道滨海枢纽立交地涵工程位于江苏省滨海县城南约6km 的淮河入海水道与通榆河交会处,具有排水、泄洪、通航的综合功能,设计泄洪流量为2270m~3/s。该工程新建23孔地涵,采用上槽下洞结构型式,上槽宽度为58m,单孔尺寸为6.0m×6.5m,总过流断面积885.5m~2。上游第一、二、三节翼墙,下游第三、四、五节翼墙和通榆河第二节翼墙采用沉井基 1 Project Overview Huaihe River into the sea Binhai hub interchange over the project is located in Binhai County, Jiangsu Province, about 6km south of the Huaihe River into the sea and Tongyu River intersection, with drainage, flood discharge, navigation of the integrated design of flood discharge capacity of 2270m ~ 3 / s . The project newly built 23 holes to the culvert, the use of the upper slot structure type, the width of the upper slot 58m, single hole size of 6.0m × 6.5m, the total cross-flow area of ​​885.5m ~ 2. Upstream of the first, second and third wing walls, the downstream third, fourth and fifth wing walls and Tongyu River second wing wall using caisson base