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岩土抗拉模量值修正与桩土作用理论解答研究

高子坤 施建勇

高子坤, 施建勇. 岩土抗拉模量值修正与桩土作用理论解答研究[J]. 力学学报, 2013, 45(5): 739-745. doi: 10.6052/0459-1879-13-005
引用本文: 高子坤, 施建勇. 岩土抗拉模量值修正与桩土作用理论解答研究[J]. 力学学报, 2013, 45(5): 739-745. doi: 10.6052/0459-1879-13-005
Gao Zikun, Shi Jianyong. RESEARCH OF CONSTITUTIVE RELATION CORRECTION OF GEOTECHNICAL MATERIALS AND THEORETICAL SOLUTION DUE TO PILE-SOIL INTERACTION[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(5): 739-745. doi: 10.6052/0459-1879-13-005
Citation: Gao Zikun, Shi Jianyong. RESEARCH OF CONSTITUTIVE RELATION CORRECTION OF GEOTECHNICAL MATERIALS AND THEORETICAL SOLUTION DUE TO PILE-SOIL INTERACTION[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(5): 739-745. doi: 10.6052/0459-1879-13-005

岩土抗拉模量值修正与桩土作用理论解答研究

doi: 10.6052/0459-1879-13-005
基金项目: 福建省科技厅重点项目(2013H0040); 福建省教育厅A类项目(JA12295)和河海大学博士后基金项目(2016-411096)资助.
详细信息
    通讯作者:

    高子坤,副教授,主要研究方向:桩-土作用和隧道开挖的三维扩缩孔理论和工程研究.E-mail:gaozikun205@126.com

  • 中图分类号: TU432

RESEARCH OF CONSTITUTIVE RELATION CORRECTION OF GEOTECHNICAL MATERIALS AND THEORETICAL SOLUTION DUE TO PILE-SOIL INTERACTION

Funds: The project was supported by the Foundation of Fujian Province Science and Technology Office (2013H0040) and Education Office (JA12295) and Postdoctoral Fellowship of Hohai University (2016-411096).
  • 摘要: 地基土的变形模量值不仅和土层所受的先期固结压力大小直接相关, 还受桩土作用产生的附加体积应变的影响.首先, 针对岩土散体材料分析其本构关系的主要影响因素, 研究模量随埋藏深度和体积应变的变化规律, 并对Duncan-Chang本构模型进行抗拉模量值修正.其次, 综合考虑岩土材料拉压模量不等修正以及桩土作用位移边界特点, 应用变分理论推导桩土作用造成的位移、应变和应力场理论解答.最后, 应用已有的经典土压力理论和小孔扩张理论对理论推导结果进行对比和分析验证.研究结果对桩基础设计施工、相应环境保护措施的选择和设计有较大的指导作用.

     

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出版历程
  • 收稿日期:  2013-01-04
  • 修回日期:  2013-05-15
  • 刊出日期:  2013-09-18

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