长距离排海管道陆海衔接计算研究

Calculation and Study on Land-Sea Connection of Long-distance Sea Drainage Pipeline

摘要:

以徐圩新区达标尾水排海工程为例，海上管道衔接施工受到海上风浪及水位影响较大，海边滩涂地区淤泥深厚，周边存在防波堤、海堤及养殖区等保护要求较高的影响因素，施工难度较大。通过介绍不同管径的管道顶管段与敷管段在海上的衔接关键技术，并对方案合理性和可靠性进行分析与计算复核，其成果可为类似工程提供借鉴。

Abstract:

Taking the Xuwei New District Standard Tail Water Sea Drainage Project as an example, the construction of offshore pipeline connection is greatly affected by sea winds and waves as well as water levels. The coastal mud flat area is deep and thick with silt. There are surrounding factors with the high protection requirements such as breakwaters, sea dikes, and breeding areas and the others. The construction is difficult. The key technologies of offshore connection of the different diameters of pipe jacking section and pipe laying section are introduced. The rationality and reliability of the scheme are analyzed, calculated and rechecked. The results can be referred for the similar projects.