桥梁钢护筒参与桩基础受力探讨

The Research on the Steel-casing Bearing Load Together with Pile

本文结合大跨度桥梁群桩基础设计,针对目前设计和施工中采用钢护筒参与桩基础结构受力的实际情况,指出了桥梁桩基础采用钢护筒参与桩基础结构受力的设计理论和施工工艺方面存在的问题,基于考虑钢护筒与承台连接方式与强度、钢护筒施工质量和工艺措施以及钢护筒与桩基础形成联合截面等多方面因素,对桥梁钢护筒参与桩基础结构受力进行了详细论述分析并提出合理建议。

Based on the design of foundation of pile-group of long span bridge and the fact of the design and construction,this paper introduces the theory and question of the steel-casing bearing load together with pile and give some suggestion based on the research on the strength of the steel-casing connect with the cushion cap,the quality of construction,and the combined section made up of the steel-casing and the pile.