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高鲁超,叶生洋.基于ABAQUS软件的单桩静载试验数值模拟[J].河北工程大学自然版,2015,32(3):51-54
基于ABAQUS软件的单桩静载试验数值模拟
Numerical simulation of the single pile static load test based on ABAQUS software
投稿时间:2015-04-02  
DOI:10.3969/j.issn.1673-9469.2015.03.012
中文关键词:  单桩极限承载力  ABAQUS  摩擦系数μ  Q~S曲线
英文关键词:the bearing capacity of single pile  ABAQUS  the coefficient of friction μ  Q~S curve
基金项目:
作者单位
高鲁超 河海大学 力学与材料学院, 江苏 南京 210098 
叶生洋 河海大学 力学与材料学院, 江苏 南京 210098 
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中文摘要:
      为了分析桩基极限承载力分布传递规律以及研究提高承载力的影响因素,利用ABAUQS有限元分析软件并结合实际工程勘察资料,选择合适的桩土力学参数,对单桩静载试验进行数值模拟。其模拟结果表明:通过合理的选择桩土力学参数,模拟得到的Q~S曲线与现场实测值基本吻合,说明利用ABAQUS有限元分析软件模拟单桩静载试验是可行的。同时分析桩土之间不同摩擦系数μ对承载力的影响情况,摩擦系数μ值对提高单桩极限承载能力是有利的。因此,摩擦型桩基极限承载力主要靠桩侧摩阻力从桩顶传递到桩端;轴向力传递自上而下逐渐减少;桩土相互作用变化也是提高桩极限承载力的手段。
英文摘要:
      In order to analyze the law of ultimate bearing capacity of the pile and numerical simulation studies to improve the bearing capacity factors,the finite element analysis software ABAQUS is used by combining with the investigation data of actual project,selected of pile and soil mechanics parameters is selected suitably and numerical simulation of the static load test of single pile is carried out.The simulation results show that through reasonable choice pile of soil mechanics parameters,simulation Q~S curves and filed measured values are well.This indicated that the use of ABAQUS finite element analysis software simulation to pile static load test is feasible.At the same time,it is beneficial to improve the ultimate bearing capacity of single pile through analyzing the effects of different coefficient of friction μ on bearing capacity.Therefore,mainly by the friction of the pile side from the pile top is transferred to the pile end bearing capacity limit friction pile;axial force transmission gradually decreases from top to bottom;changes of soil pile interaction but also to improve the ultimate bearing capacity of pile method.
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