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首页> 外文期刊>Applied Mathematical Modelling >A dual beam model for geosynthetic-reinforced granular fill on an elastic foundation
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A dual beam model for geosynthetic-reinforced granular fill on an elastic foundation

机译：弹性地基上土工增强颗粒填充的双梁模型

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摘要

In this study, a new dual beam model was proposed for a geosynthetic-reinforced granular fill with an upper pavement. This dual beam model was subjected to a uniform surcharge loading and resting on an elastic foundation which was simulated by a Pasternak model. The upper pavement was modeled by an Euler-Bernoulli beam while the geosynthetic reinforced granular fill was simulated by a reinforced Timoshenko beam. The explicit derivation process for the behavior of this dual beam-foundation system was presented and an exact solution was obtained. A two-dimensional finite element analysis and a Pasternak model for simulating the granular fill were carried out to validate the reliability of the proposed dual beam model. A parametric analysis was put forward to investigate the behavior of this dual beam-foundation system. It was found that the length of the pavement structure and vertical uniform loading, the stiffness and shear modulus of the foundation soil had significant influences on the behavior of the dual beam-foundation system.
机译：在这项研究中，提出了一种新的双梁模型，用于上部路面的土工合成材料增强的颗粒填充。该双梁模型承受了均匀的附加载荷，并置于由Pasternak模型模拟的弹性基础上。上层路面用Euler-Bernoulli梁建模，而土工合成的增强颗粒填料则用Timoshenko加固梁模拟。给出了该双梁基础系统的行为的显式推导过程，并获得了精确的解决方案。进行了二维有限元分析和模拟颗粒填充的Pasternak模型，以验证所提出的双梁模型的可靠性。提出了参数分析来研究这种双光束基础系统的性能。结果表明，路面结构的长度和竖向均匀荷载，基础土的刚度和剪切模量对双梁基础系统的性能有重要影响。

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  • 来源
    《Applied Mathematical Modelling》 |2016年第22期|9254-9268|共15页
  • 作者

    Lin-Shuang Zhao; Wan-Huan Zhou; Behzad Fatahi; Xi-Bin Li; Ka-Veng Yuen;

  • 作者单位

    Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Avenida da Universidade, Taipa, Macau, China;

    Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Avenida da Universidade, Taipa, Macau, China;

    Centre for Built Infrastructure Research, School of Civil and Environmental Engineering, University of Technology Sydney (UTS), Australia;

    Department of Civil Engineering, Zhejiang A&F University, Hangzhou, China;

    Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Avenida da Universidade, Taipa, Macau, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Analytical solution; Geosynthetic reinforced granular fill; Euler-Bernoulli beam; Timoshenko beam; Parametric study;

    机译：分析溶液;土工合成材料填充颗粒;欧拉-伯努利光束季莫申科光束;参数研究;

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