挤扩支盘桩抗拔承载力的有限元分析
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。
Abstract: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.
中文标题：
挤扩支盘桩抗拔承载力的有限元分析
Finite Element Analysis of Uplift Bearing Capacity of Squeezed Branch Pile
作者：
唐孟雄1,2,李森1
Tang Mengxiong1,2,Li Sen1
作者简介:唐孟雄,1963年生,男,汉族,湖南人,博士,教授级高工,主要从事岩土工程科研、设计和施工方面工作。E-mail:tmxiong@21cn.com
通讯地址：
1. 广州市建筑科学研究院, 广东广州 510440; 2. 中山大学工学院, 广东广州 510275
1.GuangzhouInstituteofBuildingScience,GuangzhouGuangdong510440; 2.CollegeofEngineering,SunYat-senUniversity,GuangzhouGuangdong510275China
中图分类号:TU473.11
出版物：岩土工程技术
收稿日期:2008-07-14
网络出版日期:2021-07-07
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
Key words:squeezed branch pile,bearing mechanism,uplift bearing capacity,effect factors,finite element analysis
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基金项目：
基金项目: 广东省科技基金资助项目(2004B36001028)
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