广州港新沙港区板桩码头结构设计方案比选分析

Comparison and Analysis of Structural Design Schemes of Sheet Piled Wharf in Xinsha Port Area of Guangzhou Port

介绍了广州港新沙港区板桩码头主要内力计算方法及常用软件,结合设计过程、工程地质情况、现场实际施工情况,着重从受力合理性、施工便利性、节省造价方面,对提出的钢板桩方案、钢管板桩方案进行比较分析,确定了钢管板桩结构更合理,并对优势进行总结。研究表明相对于钢板桩结构,钢管板桩结构在抗弯、抗变形、拉杆拉力和锚碇墙稳定性、对复杂地基(软弱土层较厚、岩层标高较高的地基)适应性、兼顾桩基基础、施工速度等方面更具备优势,且钢管板桩结构可更好的适应码头的大型化和深水化发展,在类似工程设计中可优先采用钢管板桩结构。

The methods for calculating the main internal forces of sheet piled wharf in the Xinsha Port area of Guangzhou Port are introduced and the proposed schemes of the steel sheet piled structure and the steel tubular sheet piled structure are compared and analyzed particularly in the aspects of structural stress,construction and cost by combining the design,the engineering geological conditions and the construction situation.The steel tubular sheet piled structure is considered to be more reasonable and its major advantages are summarized.Comparing with the steel sheet piled structure,the steel tubular sheet piled structure has the advantages of bending resistance,deformation resistance,adaptability to complex foundations(e.g.the foundation with a thick soft soil layer and a high rock elevation),acting as pile foundation and having high construction speed,and can adapt to the large-scale and deep-water development of the wharf.The Steel tubular sheet can be preferred in similar engineering designs.