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首页> 外文会议>Proceedings of the 2nd international symposium on Asia urban geoengineering >A Load Transfer Approach for Studying the Load-Deformation Response of Vertically Loaded Single Pile
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A Load Transfer Approach for Studying the Load-Deformation Response of Vertically Loaded Single Pile

机译：研究竖向荷载下单桩荷载-变形响应的荷载传递方法

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摘要

A proper load-transfer (or t-z) model describing the pile and surrounding soil interaction is important for accurately predicting the behavior of piles. This paper presents a nonlinear prediction approach of load-displacement response for vertically loaded single pile based on a load transfer method by introducing a proposed t-z model for pile-soil interface. The proposed t-z model comprises a hardening/softening mechanism which is able to capture the hardening and softening behavior of pile-soil interactions. Combined with a linear load-displacement relationship of pile tip, a highly effective computer program has been developed for nonlinear analysis of the load-displacement behavior of a vertically loaded single pile. And also, predictions of t-z curves and load-settlement curves from the proposed approach have been compared with the measured values from two well-documented field experimental pile loading case studies. The results of the comparisons indicate that the predictions show good agreement with the measured values.
机译：描述桩与周围土壤相互作用的正确载荷传递（或t-z）模型对于准确预测桩的行为很重要。通过引入桩-土界面的t-z模型，提出了一种基于荷载传递法的竖向荷载下单桩荷载-位移响应的非线性预测方法。所提出的t-z模型包括硬化/软化机制，该机制能够捕获桩-土相互作用的硬化和软化行为。结合桩尖的线性载荷-位移关系，开发了一种高效的计算机程序，用于对竖向加载的单桩的载荷-位移行为进行非线性分析。并且，将所提出的方法对t-z曲线和荷载-沉降曲线的预测与两个有据可查的现场试验桩荷载案例研究的测量值进行了比较。比较结果表明预测结果与测量值显示出良好的一致性。

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