摘要
针对上海地区某高桩墩台工程采用大直径钢管桩桩基承载力无法满足设计要求的问题,采用优化桩尖结构设计提高桩基承载力,通过高应变动力试验分析及与现行规范的对比,证明该结构能有效提升桩基极限承载力和闭塞效应,可为上海地区类似工程的桩基设计提供参考。
In view of the problem that the bearing capacity of a large diameter steel pipe pile foundation used in a high pile pier and abutment project in Shanghai cannot meet the design requirements, the optimization of the pile tip structure design is adopted to improve the bearing capacity of the pile foundation. Through the analysis of high strain dynamic test and the comparison with the current code, it is proved that the structure can effectively improve the ultimate bearing capacity and blocking effect of pile foundation, which can provide a reference for the design of similar projects in Shanghai.
作者
项雨略
孔庄
Xiang Yulue;Kong Zhuang(CCCC Shanghai Waterway Engineering Design and Consulting Co.,Ltd.,Shanghai 200120,China)
出处
《港工技术》
2020年第S01期67-69,共3页
Port Engineering Technology
关键词
上海
大直径钢管桩
承载力
闭塞效应
Shanghai
large-diameter steel pile
bearing capacity
plugging effect
