铁道科学与工程学报2017，Vol.14Issue(6)：1255-1260,6.
连盐铁路桥梁基桩竖向承载力试验研究
Loading test on the vertical bearing capacity of bridge pile foundation of Lianyan railway
何志超1
作者信息
- 1. 上海铁路局 建设管理处,上海 200071
- 折叠
摘要
Abstract
Based on the vertical loading test results of three bored piles and three PHC (prestressed high strength concrete) pipe piles of Zhongshan River Bridge, the load transfer mechanism and vertical load bearing behavior of two kinds of piles were discussed in depth. The results show that: the vertical bearing capacity of bored piles is supplied mainly by side friction resistance, while the vertical bearing capacity of the PHC pipe pile is borne by the side friction resistance and end resistance. In the design of the PHC pipe pile, it is suggested that the limit friction resistance of the shallow soil should be properly reduced. The ultimate friction resistance of the pile in the middle soil can be determined according to the normal value and the ultimate friction resistance of deep soil can be increased properly.关键词
钻孔灌注桩/PHC管桩/单桩竖向静载荷试验/竖向承载力/侧摩阻力Key words
bored pile/PHC pipe pile/vertical static load test/vertical bearing capacity/side friction resistance分类
建筑与水利引用本文复制引用
何志超..连盐铁路桥梁基桩竖向承载力试验研究[J].铁道科学与工程学报,2017,14(6):1255-1260,6.
