郑州大学学报（工学版）2011，Vol.32Issue(3)：52-54,59,4.
刚性桩复合地基褥垫层厚度取值方法研究
Research on Calculation Method of the Cushion Thickness in the Rigid Pile Composite Foundation
摘要
Abstract
The paper analyzed the calculating method of the cushion thickness in rigid pile composite foundation. Based on Terzaghi theory, the minimum thickness and the maximum thickness are derived considering the function of the cushion and its possible failure modes. Moreover, the determination principle of the best cushion thickness is brought forward. The mimimum thickness of the cushion takes the value of pile' s upper penetration into the cushion, while the cushion thickness is taken as the maximum thickness when the vertexes of sliding surface contact the bottom of pile cap. Finally, the calculation method of the cushion thickness is verified by using an empirical formula, which can provide a theoretical support for design of the cushion.关键词
复合地基/刚性桩/褥垫层/取值方法Key words
composite foundation/the rigid pile/cushions/methods of value selection分类
建筑与水利引用本文复制引用
张四化,毕苏萍,郭院成..刚性桩复合地基褥垫层厚度取值方法研究[J].郑州大学学报（工学版）,2011,32(3):52-54,59,4.基金项目
国家自然科学基金资助项目(50978325) （50978325）
