土木工程与管理学报2025，Vol.42Issue(2)：17-23,30,8.DOI:10.13579/j.cnki.2095-0985.2025.20240312
深厚软土多桩型复合地基水闸不均匀沉降分析
Analysis of Differential Settlement of Sluice on Composite Foundation with Multi-pile in Deep Soft Soil
摘要
Abstract
In order to solve the problem of differential settlement of sluices in deep soft soil areas.Firstly,the foundation design of sluices in Zhuhai and the differential settlement of a certain sluice were analyzed.Secondly,a two-dimensional numerical model was established based on the principle of stiffness equivalence.After comparing and verifying the model with the actual measured results,the stress and deformation characteristics of the composite foundation were explored,along with an analysis of the influences factors such as the cushion layer,pipe pile arrangement,and sidewall drag reduction.Finally,the causes of differential settlement in a certain sluice were summarized and ana-lyzed,and design suggestions were proposed from the perspectives of sluice structure,composite foun-dation,and foundation treatment of the shore connection transition area,providing a reference for en-gineering applications.The results show that the composite foundation with multi-pile for sluices in Zhuhai typically employs consistent pile type combinations,but there are significant differences in the cushion layer design.Reducing drag along the chamber sidewalls has a relatively good effect on con-trolling differential settlement,and the priority use is recommended.The main causes of differential settlement in a certain sluice include suboptimal cushion layer design,insufficient consideration of the shore connection transition area during design,and adverse impacts from surrounding construction ac-tivities.关键词
水闸/多桩型复合地基/深厚软土/不均匀沉降/边荷载Key words
sluice/composite foundation with multi-pile/deep soft soil/differential settlement/side load分类
水利科学引用本文复制引用
张建,曹雄..深厚软土多桩型复合地基水闸不均匀沉降分析[J].土木工程与管理学报,2025,42(2):17-23,30,8.基金项目
广东省住房和城乡建设厅科技创新计划项目(2022-K4-231814 （）
2022-K4-065552) （）
珠海市产学研合作项目(ZH22017001200149PWC) （ZH22017001200149PWC）
