装配式旋压扩大头钢管桩的设计与施工

Design and Construction of Prefabricated Spinning Steel Pipe Pile with Enlarged End

文章对装配式旋压扩大头钢管桩的优势进行讨论,提出了装配式旋压扩大头钢管桩的设计思路,即围绕一般规定、构造及焊缝形式和尺寸,通过对有关设计参数及流程展开讨论,论述了装配式旋压扩大头钢管桩具体施工流程,并对制作与施工、产品制作与出厂检验施工准备施工工艺等进行分析研究。研究结果表明,在关键施工工艺中,吊装时应对构件进行进场验收,主要通过复核桩芯位置、检验机械水平度等方式,通过高效率的施工方式决定桩架及吊装次序。

This paper discusses the advantages of prefabricated spinning steel pipe pile with enlarged end,and puts forward the design ideas of prefabricated spinning steel pipe pile with enlarged end,that is,focusing on the general regulations,structure and weld form and size,through the discussion of relevant design parameters and processes,the specific construction process of prefabricated spinning steel pipe pile with enlarged end is discussed,and the production and construction,product production and factory inspection,construction preparation,and construction technology are analyzed and studied.The study results show that,in the key construction process,the site acceptance for components should be performed during hoisting,and the pile frame and hoisting sequence should be determined through high-efficient construction by reviewing the position of the pile core and checking the mechanical levelness.