中山大学学报自然科学版 ›› 2011, Vol. 50 ›› Issue (2): 47-53.

• 研究论文 • 上一篇    下一篇

考虑共同作用的刚性桩复合地基解析分析及其工程应用

李希平1,2,陈存恩3 ,刘 波1 ,倪光乐4 ,陶龙光1   

  1. (1 中国矿业大学(北京)力学与建筑工程学院,北京 1000832 广州市城乡建设委员会,广东 广州 510032;3 华南农业大学水利与土木工程学院,广东 广州 510642;4 广州市泰基工程技术有限公司,广东 广州 510507)
  • 收稿日期:2010-09-20 修回日期:1900-01-01 出版日期:2011-03-25 发布日期:2011-03-25

Case Study and Analytical Analysis of Rigid Pile Composite Foundations Considering Interaction

LI Xiping1,2 ,CHEN Cunen3,LIU Bo1,NI Guangle4,TAO Longguang1   

  1. (1.School of Mechanics and Civil Engineering,China University of Mining and Technology,Beijing 100083, China; 2.Guangzhou Urban and Rural Construction Commission,Guangzhou 510032,China; 3.College of Water Conservancy and Civil Engineering,South China Agricultural University,Guangzhou 510642, China;4.Guangzhou Taiji Engineering CO.Ltd, Guangzhou 510507, China)
  • Received:2010-09-20 Revised:1900-01-01 Online:2011-03-25 Published:2011-03-25

摘要: 基于集中力作用下的Mindlin解位移公式,推导得到圆形和环形均布荷载作用下的地基沉降公式,将刚性桩复合地基视为桩、土、筏板体系,采用半解析法,通过筏板、桩以及地基相互之间力的平衡与位移协调建立方程,得到了刚性桩复合地基考虑共同作用的半解析解。文中方法未知量少,计算速度快,便于实际应用,工程实例结果表明,该方法具有较好的适应性。

关键词: 刚性桩, 复合地基, 共同作用, 半解析方法, 工程实例

Abstract: Based on Mindlin displacement solution subjected to centralized load,the settlement of circle or ring uniform load is proposed. A semi-analytical method,which makes use of compatible analysis of force and displacement between piles,slab and ground,is developed to analyze interaction among rigid pile composite foundations. This method has less unknown parameter, but it has fast calculation speed and practicality.The results from practical engineering prove that the method presented has good preciseness and practicality.

Key words: rigid pile, composite foundation, interaction, semianalytical method, practical engineering

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