摘要
结合某挖入式港池工程,介绍深水整体卸荷式板桩结构的超长钢管-板桩结合墙设计及关键施工工艺。根据辅桩适应变形的能力,对主桩垂直度允许偏差提出0.4%的要求。通过对导向架合理的设计和改造,采用整桩起吊、振打结合、交错下沉的沉桩工艺等措施,确保顺利沉桩。结果表明,全部钢管-板桩结合墙都达到设计高程,沉桩效果良好,可为类似工程提供技术参考。
Based on a dredged harbor basin project, this paper introduced the design and key constructiontechnologies about the over-length steel tube-sheet pile wall in the integral deep-water unloading sheet-pile structure.According to the auxiliary pile＇s ability to adapt to the deformation, the requirement that the allowable deviation ofmain pile＇s verticality is no more than 0. 4% was put forward.Through rational design and transformation to the guideframe, the pile-sinking technologies such as whole-pile lifting, vibrating-driving combination, and staggered sinkingwere adopted to ensure that the piles sink smoothly.The results show that all the steel tube-sheet pile walls achieve thedesign elevation and have a good pipe sinking effect.It can provide a technical reference for similar projects.
出处
《水运工程》
北大核心
2016年第8期168-173,共6页
Port & Waterway Engineering
关键词
超长钢管-板桩结合墙
C9锁扣
导向架
振动沉桩
施工工艺
over-length steel tube-sheet pile wall
C9 lock
guide frame
vibro-sinking pile
construction technology
