| 带桩筏基系统的弹塑性分析与设计方法研究 |
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| 引用本文： | 潘 健,刘利艳,王兴斌,顾太华. 带桩筏基系统的弹塑性分析与设计方法研究[J]. 岩土力学, 2006, 27(Z2): 195-199 |
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| 作者姓名： | 潘 健 刘利艳 王兴斌 顾太华 |
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| 作者单位： | 1. 华南理工大学 建筑学院，广州 510640； 2. 广州瀚华建筑设计有限公司，广州 510630 |
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| 摘 要： | 采用ABAQUS有限元程序中的线性扩展D-P模型对带桩筏基下的地基土进行弹塑性模拟，建立了带桩筏基系统的ABAQUS程序三维有限元模型。经比较各种桩、筏基础的内力与沉降关系计算结果，得到了带桩筏基的一些工作特性。在此基础上结合《建筑地基基础设计规范》(GB5007-2002)，改进了传统的复合桩基设计方法，讨论了“三阶段”设计理念的可行性，并将其应用于工程实例。分析结果表明，改进的复合桩基设计方法和“三阶段”设计方法较常规设计方法更加经济合理。
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| 关 键 词： | 带桩筏基 弹塑性模型 复合桩基 “三阶段”设计方法 |
| 收稿时间： | 2006-11-26 |
Elastic-plastic analysis and design method for piled raft foundation system |
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| PAN Jian,LIU Li-yan,WANG Xing-bin,GU Tai-hua. Elastic-plastic analysis and design method for piled raft foundation system[J]. Rock and Soil Mechanics, 2006, 27(Z2): 195-199 |
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| Authors: | PAN Jian LIU Li-yan WANG Xing-bin GU Tai-hua |
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| Affiliation: | 1. College of Architecture and Civil Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China;2. Guangzhou Hanhua Architects & Engineers LTD, Guangzhou 510630, Guangdong, China |
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| Abstract: | The soil under the piled raft foundation system was simulated by linear extended D-P elastic-plastic soil model. 3D finite element model of ABAQUS program was established to obtain some behaviors of the piled raft foundation system by comparison of load-settlement curves of several foundations. Composite pile foundation design method was studied and improved combined with Code for Design of Building Foundation (GB5007-2002), then the three-stage concept was discussed. Computation results show that these two methods are more economical than conventional design methods. |
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| Keywords: | piled raft foundation elastic-plastic model composite pile foundation,“three-stage” design approach, |
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