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基于极限平衡法与极限分析法等效性的地基承载力系数Nγ的上限解

杨扬 卢坤林 朱大勇 吴平

杨扬, 卢坤林, 朱大勇, 吴平. 基于极限平衡法与极限分析法等效性的地基承载力系数Nγ的上限解[J]. 工业建筑, 2013, 43(2): 72-77,71. doi: 10.13204/j.gyjz201302015
引用本文: 杨扬, 卢坤林, 朱大勇, 吴平. 基于极限平衡法与极限分析法等效性的地基承载力系数Nγ的上限解[J]. 工业建筑, 2013, 43(2): 72-77,71. doi: 10.13204/j.gyjz201302015
Yang Yang, Lu Kunlin, Zhu Dayong, Wu Ping. THE UPPER-BOUND SOLUTION FOR BEARING CAPACITY FACTOR OF BY EMPLOYING THE EQUIVALENCE OF LIMIT ANALYSIS AND LIMIT EQUILIBRIUM METHOD[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(2): 72-77,71. doi: 10.13204/j.gyjz201302015
Citation: Yang Yang, Lu Kunlin, Zhu Dayong, Wu Ping. THE UPPER-BOUND SOLUTION FOR BEARING CAPACITY FACTOR OF BY EMPLOYING THE EQUIVALENCE OF LIMIT ANALYSIS AND LIMIT EQUILIBRIUM METHOD[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(2): 72-77,71. doi: 10.13204/j.gyjz201302015

基于极限平衡法与极限分析法等效性的地基承载力系数Nγ的上限解

doi: 10.13204/j.gyjz201302015
基金项目: 

教育部博士点基金项目(200901111110014);国家自然科学基金项目(51078123,51179043)

详细信息
    作者简介:

    杨扬,女,1977年出生,博士研究生,讲师. 电子信箱:lklyy1977@163.com

  • 中图分类号: TU470

THE UPPER-BOUND SOLUTION FOR BEARING CAPACITY FACTOR OF BY EMPLOYING THE EQUIVALENCE OF LIMIT ANALYSIS AND LIMIT EQUILIBRIUM METHOD

  • 摘要: 针对地基承载力系数N真实解答尚未获得的现状,提出一种计算N上限解的数值计算方法。在论证极限平衡法与极限分析法等效性的基础上,采用一组三角条块逼近满足机动许可的潜在破坏机构,通过极限平衡法建立条间力的递推公式,依据推力最大原理优化条块底线的倾角,得到最危险破坏机构及对应的地基承载力系数N的上限数值解,进而分析地表倾斜情况下的N及其修正方法;最后,为了便于工程应用,给出N及地表倾斜修正系数的近似表达式。通过与已有研究成果的比较,验证该方法的合理性。研究表明:该方法计算过程简单易于编程实现,能够得到相对小的上限解。研究成果可用于地基承载力的理论分析,为深入研究地基承载力系数N提供参考。
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出版历程
  • 收稿日期:  2012-06-03
  • 刊出日期:  2013-02-20

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