岩土力学2017，Vol.38Issue(10)：2916-2922,2930,8.DOI:10.16285/j.rsm.2017.10.019
基于应力增量的单桩p-y曲线分析方法
A method for p-y curve of a single pile based on stress increment
摘要
Abstract
Due to the lack of mature theoretical system,the research progress ofp-y curve is slow.With the consideration of the actual stress state of foundation soil and deployment of Vesic expansion theory,a new method for analysis ofp-y curve based on stress increment is developed.This method combines the contributions of soil radial stress increment,longitudinal stress increment effect and deep rotation angle of pile to the horizontal soil resistance.It is a type of solution ofp-y curve considering various factors.The method can be applied to different type of piles.The case results show that this method is correct and accurate in analyzing the behavior of laterally loaded pile.It produces better precision in large deformation analysis than Reese,API and Kim methods.The above research result is of great significance for in-depth study of the p-y curve development.关键词
p-y曲线/应力增量/水平受荷桩/圆孔扩张/大变形Key words
p-y curve/stress increment/lateral pile/cavity expansion/large deformation分类
建筑与水利引用本文复制引用
李洪江,刘松玉,童立元..基于应力增量的单桩p-y曲线分析方法[J].岩土力学,2017,38(10):2916-2922,2930,8.基金项目
国家重点研发计划项目(No.2016YFC0800201) （No.2016YFC0800201）
江苏省建设系统科技项目资助(No.2014ZD66) （No.2014ZD66）
中央高校基本科研业务费专项资金资助和江苏省普通高校研究生科研创新计划资助项目(No.KYLX16_0244).This work was supported by the National Key Research Projects of China (2016YFC0800201),the Construction Science and Technology Research Project of Jiangsu Province (2014ZD66),the Fundamental Research Funds for the Central Universities and the Graduate Student Scientific Research Innovation Program of Jiangsu Province (KYLX16_0244). （No.KYLX16_0244）
