土工基础

›› 2015, Vol. 29 ›› Issue (1): 81-84.

• 工程实录 • 上一篇    下一篇

扩底抗拔桩荷载传递规律及其影响因素分析

郑鑫轲，朱赛男，樊广辉，张立伟   

  1. (贵州大学喀斯特环境与地质灾害防治教育部和国土资源部重点实验室,贵阳 550003)
  • 收稿日期:2014-06-20 出版日期:2015-02-20 发布日期:2015-03-13
  • 作者简介:郑鑫轲（1986-），女，河南南阳人，助理工程师，硕士研究生，研究方向为岩土工程地基基础。

Law of Load Transmission of Pedestal Tension Pile and Analysis of Influencing Factors

ZHENG Xinke, ZHU Sainan，FAN Guanghui, ZHANG Liwei   

  1. (The Key Laboratory of Karst Environment and Geological Hazard Prevention, 
    Ministry of Education and Ministry of Land and Resources, Guizhou University, Guiyang 550003)
  • Received:2014-06-20 Online:2015-02-20 Published:2015-03-13

摘要： 近年来，扩底抗拔桩已逐渐应用到需要抵抗上拔荷载作用的建（构）筑物基础中，然而，扩底抗拔桩的变形比较复杂，影响因素也较多，现阶段对其理论研究尚不完善，制约着扩底抗拔桩的工程应用。在对目前已有扩底桩抗拔承载力理论研究分析的基础之上，结合工程实例，分析总结扩底抗拔桩荷载的传递规律及其承载力的影响因素，为更深入的认识扩底抗拔桩的变形性状及其承载特性提供了一定借鉴。

关键词: 桩基工程, 扩底抗拔桩, 荷载传递规律, 抗拔承载力, 影响因素

Abstract: The uplift resistance and the deformation characteristics of the castinplace concrete pile with enlarged base have been extensively analyzed and a wider application of this type of pile in the buildings and other structures is observed recently. However, due to the deformation complicity of enlarge based piles; factors that might affect the performance are not very clear. The performance of this type of pile cannot be theoretically modeled so that the application of this enlarge based pile is also restrained. This paper presents a case history of enlarge based pile analysis. Based on the current research results, the load transfer and bearing capacity characteristics are analyzed. This results prove a better understanding of enlarge based piles.

Key words: Pile Foundations, Enlarge Based CastinPlace Concrete Piles, Load Transfer Mechanism, Uplift Resistance, Effecting Factors