预制预应力混凝土空心方桩在大吨位码头应用分析

Application of Precast Pre-stressed Concrete Hollow Square Pile in the Port of Big Deadweight Tonnage

随着港口工程建设的发展,船舶的大型化,对航道等级、水深及大型深水泊位的建设提出了更高的要求。由于码头前沿水深的进一步增加,高桩码头中的桩基础自由站立长度加长且荷载增大,设计中常采用大直径管桩基础替代原有的预应力混凝土方桩基础,但其造价较高。预制预应力混凝土空心方桩能否适应大吨位码头建设的需要,成为工程设计中需要解决的重要问题。

With the development of port engineering construction, ship large, higher requirements for the construction of channel level, water depth and deep water berths are presented.Due to the further increase of the water depth of the pier, the length of pile foundation in high piled wharfs and the load increase, the foundation of large diameter pipe pile foundation is used to replaced the original prestressed concrete square pile foundation in the design,but its cost is higher. Precast prestressed concrete hollow square pile can adapt to the needs of construction of large tonnage pier, become an important problem to be solved in engineering design.