| 基于GTS对单桩静载试验的有限元模拟分析 |
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| 引用本文： | 钱德玲,张文彦,曹光暄,李天宝.基于GTS对单桩静载试验的有限元模拟分析[J].合肥工业大学学报(自然科学版),2009,32(2). |
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| 作者姓名： | 钱德玲 张文彦 曹光暄 李天宝 |
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| 作者单位： | 1. 合肥工业大学,土木与水利工程学院,安徽,合肥,230009
2. 安徽省建设工程勘察设计院,安徽,合肥,230001 |
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| 摘 要： | 文章采用有限元对单桩极限承载力静载试验进行分析;该方法采用Drucker-Prager模型确定土体本构关系,在桩土之间设置Goodman接触单元;结合合肥地区的工程实例,利用GTS有限元分析工具,建立有限元模型,进行了基桩静载试验的数值模拟.结果表明,通过合理地设定计算参数,基桩静载试验的Q-s曲线实测值和计算值吻合较好.分析结果对于深刻理解桩土相互作用的机理有重要的意义,为确定单桩极限承载力开辟了新的思路.
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| 关 键 词： | 有限元法 单桩极限承载力 静载试验 Drucker-Prager模型 |
Finite element simulation and analysis of static load testing of single piles based on GTS |
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| QIAN De-ling,ZHANG Wen-yan,CAO Guang-xuan,LI Tian-bao.Finite element simulation and analysis of static load testing of single piles based on GTS[J].Journal of Hefei University of Technology(Natural Science),2009,32(2). |
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| Authors: | QIAN De-ling ZHANG Wen-yan CAO Guang-xuan LI Tian-bao |
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| Institution: | 1.School of Civil Engineering;Hefei University of Technology;Hefei 230009;China;2.Anhui Provincial Institute of Survey and Design for Construction Engineering;Hefei 230001;China |
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| Abstract: | In this paper,the vertical ultimate bearing capacity of single piles is studied by using FEM.Based on one example in Hefei,the static load testing of single piles is simulated by using GTS.The Drucker-Prager model is adopted to simulate the constitutive relation of soils.The interaction between the pile and soil is simulated with the Goodman contact element.It is concluded that the method is precise.The analysis result is of important reference value to pile and soil simulation and design. |
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