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软黏土中水平循环荷载作用下刚性短桩的 p–y 曲线分析

张陈蓉, 俞剑, 黄茂松

张陈蓉, 俞剑, 黄茂松. 软黏土中水平循环荷载作用下刚性短桩的 p–y 曲线分析[J]. 岩土工程学报, 2011, 33(sup2): 78-82.
引用本文: 张陈蓉, 俞剑, 黄茂松. 软黏土中水平循环荷载作用下刚性短桩的 p–y 曲线分析[J]. 岩土工程学报, 2011, 33(sup2): 78-82.
ZHANG Chen-rong, YU Jian, HUANG Mao-song. p–y curve analyses of rigid short piles subjected to lateral cyclic load in soft clay[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(sup2): 78-82.
Citation: ZHANG Chen-rong, YU Jian, HUANG Mao-song. p–y curve analyses of rigid short piles subjected to lateral cyclic load in soft clay[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(sup2): 78-82.

软黏土中水平循环荷载作用下刚性短桩的 p–y 曲线分析  English Version

基金项目: 国家自然科学基金青 年基金项目( 51008228)
详细信息
    作者简介:

    张陈蓉 (1982 – ) ,女,江苏人,讲师,从事桩基工程研究。

  • 中图分类号: TU473

p–y curve analyses of rigid short piles subjected to lateral cyclic load in soft clay

  • 摘要: 在反复的水平荷载作用下,桩周土体中不可恢复的塑性变形会随着循环荷载的作用而逐渐累积,从而引起桩土相互作用的弱化。通过软黏土中不排水条件下基于 Tresca 准则扩展而来的土体弱化模型和离心试验的结果修正静力双曲线形式 <> p <> y 曲线。从循环荷载下桩土相互作用机理角度考虑水平循环荷载对单桩基础的影响,并与刚性短桩离心模型试验的结果进行了对比分析,验证了该方法的合理性。
    Abstract: With cyclic lateral load, the accumulation of unrecovered plastic deformation in the soil around pile will induce the degradation of pile-soil interaction. The strain-softening soil model, as a simple extension of the elastic-perfectly plastic Tresca model, accompanied with the results of centrifuge model, is used to establisht the cyclic p–y curve by modifying static hyperbolic p–y curve. The effects of the lateral cyclic load on the pile behavior are considered by analyzing the pile-soil interaction mechanism. The rationality of the proposed method is verified by comparison with centrifugal model tests on rigid short piles subjected to cyclic lateral load.
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出版历程
  • 收稿日期:  2011-08-21
  • 发布日期:  2011-12-06

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