摘要
挤扩支盘桩是近年来发展起来的一种新桩型,具有广阔的工程应用前景。运用ANSYS有限元软件,建立了广州软土中挤扩支盘桩二维桩土模型,探讨了上拔荷载作用下桩身荷载传递规律和支盘承载特性,并分析了支盘大小、数量、间距和桩、土材料参数等因素对支盘桩抗拔承载力的影响。进一步揭示了挤扩支盘桩单桩抗拔承载机理,可为该类桩的设计和施工提供参考。
Squeezed branch pile, which has a remarkable potential in engineering practices, is a new type of pile developed in recent years. To study the load transfer mode of squeezed branch pile and bearing characteristics of branch plates in uplift forces, several two-dimensional pile-soil models of squeezed branch pile in soft soil of Guangzhou are established in ANSYS, and the effects of branch size, branch number , branch space and material parameters of pile and soil on the uplift bearing capacity of squeezed branch pile are analyzed also. The uplift bearing mechanism of single squeezed branch pile is investigated progressively,and the results provide a reference for the design and construction of similar piles.
出处
《岩土工程技术》
2008年第5期227-231,共5页
Geotechnical Engineering Technique
基金
广东省科技基金资助项目(2004B36001028)
关键词
挤扩支盘桩
承载机理
抗拔承载力
影响因素
有限元分析
squeezed branch pile
bearing mechanism
uplift bearing capacity
effect factors
finite element analysis
