华东交通大学学报2025，Vol.42Issue(1)：16-25,10.
劲性复合管桩支护结构水平受力变形特性研究
Research on the Horizontal Stress and Deformation Characteristics of the Strength Composite Pipe Pile Support Structure
摘要
Abstract
In order to study the performance differences between the strength composite pipe pile(SCP pile)and traditional pipe piles in foundation pit support,using indoor model tests and finite element simulation methods,the stress and deformation characteristics of SCP pile support structure during excavation are studied,and the in-fluence of cement soil parameters on its support effect is revealed.The research results indicate that under experi-mental conditions,the support effect of cement soil wrapped pipe piles is significantly improved;Compared to traditional pipe piles,the horizontal displacement at the top of SCP piles decreases by 24.7%to 58.3%,the settle-ment of the outer soil decreases by 11.4%to 44.9%,and the bending moment of the pile body decreases by 10.9%to 24.6%.Cement soil can effectively improve the support capacity of pipe piles as supporting structures,and increasing the elastic modulus of cement soil and increasing its thickness can significantly enhance the sup-porting effect of reinforced composite piles.However,in contrast,increasing the thickness has a more prominent effect on the supporting effect.关键词
劲性复合管桩/支护结构/室内模型试验/支护结构与土体位移/桩身弯矩Key words
strength composite pipe pile/support structure/indoor model test/supporting structure and soil dis-placement/pile bending moment分类
建筑与水利引用本文复制引用
余少华,郑小晴,夏良利,方焘,罗如平,付丽,朱晓杰..劲性复合管桩支护结构水平受力变形特性研究[J].华东交通大学学报,2025,42(1):16-25,10.基金项目
江西省交通运输厅科技项目(2022H0023) （2022H0023）
