摘要
在桩土之间设置接触面单元对疏桩基础(桩间距≥6d)用有限元法进行分析。考虑筏板、桩与地基之间相互作用,建立三维的相互耦合的20节点实体单元-16节点接触面单元-8节点板单元数值计算模型,分析桩长、桩间距以及筏板厚度对疏桩基础的受力影响。得出一些规律性结论,便于认识疏桩基础的受力机理。
In this paper, The finite element method is used to analyze the sparse pile foundation while interface element method is introduced in between piles and soil. Using 2D 8-node iso-parameter bending element, 3D 20-node iso-parameter and 3D 16-node interface element, a coupled non-linear numerical approach for the piled raft system is set up. Analyzed some main parameter＇ s influence and Some regular conclusion is gotten.
出处
《工程建设与设计》
2007年第11期66-69,共4页
Construction & Design for Engineering
关键词
疏桩基础
荷载分担比
有限元
数值分析
sparse pile foundation
finite element method
numerical model
shared ratio
