河南城建学院学报2025，Vol.34Issue(3)：60-66,7.DOI:10.14140/j.cnki.hncjxb.2025.03.009
软土地基PHC管桩承载特性数值模拟分析
Numerical simulation analysis of bearing characteristics of PHC pipe piles in soft soil foundations
李宗笑 1傅志斌2
作者信息
- 1. 桂林理工大学土木工程学院,广西桂林 541004
- 2. 桂林理工大学土木工程学院,广西桂林 541004||建设综合勘察研究设计院有限公司,北京 100007
- 折叠
摘要
Abstract
In China's coastal regions,thick marine clay layers are widespread,featuring high compressibility,low strength,and poor engineering properties.Prestressed high-strength concrete(PHC)pipe piles are highly applicable in soft ground treatment in coastal areas.Studying the bearing characteristics of PHC pipe piles in soft soil foundations holds great significance.Using a chemical company's building foundation in Panjin,Liaon-ing Province as an example,the numerical model of PHC pipe piles was established by using the Midas GTS fi-nite element analysis software.By adjusting parameters such as pile length and diameter,the effects on pile de-formation and load transfer were studied.It is found that with the increase of pile length,the ultimate bearing capacity of PHC pipe piles increases stepwise,but the increase rate gradually decreases.When the pile diame-ter increases from 0.5 m to 0.6 m,the bearing capacity increases by 7.7％,and further increasing the pile di-ameter has no significant effect.Considering economic and practical factors,it is recommended to optimize the pile foundation design parameters.For this working condition,a pile length of 20 to 24 m and a pile diameter of 0.5 to 0.6 m are suggested.关键词
PHC管桩/软土地基/静载试验/数值模拟Key words
PHC pipe piles/soft soil foundations/static load test/numerical simulation分类
土木建筑引用本文复制引用
李宗笑,傅志斌..软土地基PHC管桩承载特性数值模拟分析[J].河南城建学院学报,2025,34(3):60-66,7.
