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管片衬砌梁-弹簧广义模型及接头转动非线性模拟

朱合华, 周龙, 朱建文

朱合华, 周龙, 朱建文. 管片衬砌梁-弹簧广义模型及接头转动非线性模拟[J]. 岩土工程学报, 2019, 41(9): 1581-1590. DOI: 10.11779/CJGE201909001
引用本文: 朱合华, 周龙, 朱建文. 管片衬砌梁-弹簧广义模型及接头转动非线性模拟[J]. 岩土工程学报, 2019, 41(9): 1581-1590. DOI: 10.11779/CJGE201909001
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ZHU He-hua, ZHOU Long, JU Jiann-wen. Beam-spring generalized model for segmental lining and simulation of its nonlinear rotation[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(9): 1581-1590. DOI: 10.11779/CJGE201909001
Citation: ZHU He-hua, ZHOU Long, JU Jiann-wen. Beam-spring generalized model for segmental lining and simulation of its nonlinear rotation[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(9): 1581-1590. DOI: 10.11779/CJGE201909001
shu

管片衬砌梁-弹簧广义模型及接头转动非线性模拟  English Version

  • 1. 同济大学土木工程防灾国家重点实验室,上海 200092;
    2. 同济大学隧道及地下工程教育部重点实验室,上海 200092;
    3. 同济大学土木工程学院地下建筑与工程系,上海 200092;
    4. 加州大学洛杉矶分校土木与环境工程系,美国 加利福尼亚 90095

基金项目: 国家自然科学基金项目（51578410）; 土木工程防灾国家重点实验室自主课题（SLDRCE14-A-09）
详细信息
    作者简介:

    朱合华(1962— ),男,安徽巢湖人,工学博士,教授,主要从事隧道及地下建筑工程领域的教学和科研工作。E-mail: zhuhehua@tongji.edu.cn。

Beam-spring generalized model for segmental lining and simulation of its nonlinear rotation

  • 1. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;
    2. Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China;
    3. Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China;
    4. Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, USA

摘要

    摘要
  • 摘要: 梁-弹簧模型法在盾构管片衬砌设计计算中逐渐得到广泛应用,但现有的梁-弹簧模型无法模拟盾构衬砌管片接头的不连续变形及接头转动刚度的非线性特性。基于此,开展了梁-弹簧模型在衬砌设计中的适用性及非线性接头转动刚度在梁-弹簧模型中的应用研究。研究表明：根据对相邻管片在接头位置结点位移处理的不同,可将梁-弹簧模型分为梁-弹簧连续模型和梁-弹簧不连续模型,后者又称为梁-接头模型,可准确分析盾构管片衬砌的内力及变形。采用梁-弹簧不连续模型求解衬砌内力及变形时：对于线性接头转动刚度模型,可基于卡氏第二定理求解;对于多段线性模型,可基于卡氏第一定理或克-恩定理求解;对于非线性模型,可采用增量-迭代法数值求解。
    Abstract: The beam-spring model method has been widely used in the design and calculation of shield tunnel lining, but the existing beam-spring models cannot simulate the discontinuous deformation of the segmental joints and the nonlinear characteristics of the joint rotational stiffness. Therefore, the applicability of the beam-spring models in the design of shield lining and the application of nonlinear joint rotational stiffness in the beam-spring models are studied. The results show that according to the different disposal of the nodal displacement at the joint positions between the adjacent segments, the beam-spring models can be divided into the beam-spring continuous model and the beam-spring discontinuous model, and the latter is also called the beam-joint model, in which the internal force and deformation of the shield lining can be accurately analyzed. When the beam-spring discontinuous model is employed to calculate the internal force and deformation of shield lining structures, the Second Castigliano's Theorem can be used for the segmental joints with linear rotational stiffness model, the First Castigliano's Theorem or Crotti-Engesser's Theorem can be used for the segmental joints with multi-linear stiffness model, and the numerical solution based on the increment iteration method can be used for the segmental joints with nonlinear stiffness model.
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    • 参考文献(16)
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  • 收稿日期:  2018-08-04
  • 发布日期:  2019-09-24

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