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首页> 外文期刊>Applied Mathematical Modelling >Scattering of a plane wave by shallow buried cylindrical lining in a poroelastic half-space
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Scattering of a plane wave by shallow buried cylindrical lining in a poroelastic half-space

机译：浅埋圆柱形衬砌散热桥面散射飞机波在孔隙弹性半空间中

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摘要

The shallow buried tunnel is frequently encountered in underground engineering. The dynamic response of a tunnel under incident wave is of great importance for guiding the safety design in tunnel engineering. In this paper, a model for predicting the dynamic response of a shallow buried tunnel in saturated soil is proposed based on nonlocal Biot theory. The analytical solution is obtained using the wave function expansion method. To consider practical engineering problem, a set of material parameters for saturated soil and tunnel lining are selected for the numerical analysis. The influence of nonlocal parameter, which is introduced in nonlocal Biot theory to consider the pore size effect and pore dynamic effect, on dynamic stress concentrate factor in the lining is investigated in detail. The dynamic responses affected by the other factors, such as incident wave angle, frequency of incident wave and buried depth of the tunnel, have also been implemented. The dynamic stress concentrate factor distributed in the lining is also shown and the position and orientation appearing maximum concentrate factor can be easily determined from the contour plot, which can provide a visual guideline for safety design of a tunnel. (C) 2019 Elsevier Inc. All rights reserved.
机译：地下工程经常遇到浅埋隧道。事件波下隧道的动态响应非常重视引导隧道工程安全设计。本文基于非本体Biot理论，提出了一种用于预测饱和土中饱和土隧道动态响应的模型。使用波函数扩展方法获得分析解决方案。要考虑实际工程问题，选择了一组用于饱和土和隧道衬里的材料参数，用于数值分析。非局部参数的影响，在非局部生物理论中引入孔径效应和孔动态效应，详细研究了衬里中的动态应力集中因子。还实施了受其他因素影响的动态响应，例如入射波角，入射波和隧道埋深的频率。还示出了分布在衬里中的动态应力集中因子，并且可以从轮廓图容易地确定出现最大浓缩因子的位置和取向，这可以提供隧道安全设计的视觉指导。 （c）2019 Elsevier Inc.保留所有权利。

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  • 来源
    《Applied Mathematical Modelling》 |2019年第6期|171-189|共19页
  • 作者

    Xua C. J.; Dinga H. B.; Tong L. H.; Luo W. J.; Wang N.;

  • 作者单位

    East China Jiaotong Univ Jiangxi Key Lab Infrastruct Safety & Control Geot Nanchang Jiangxi Peoples R China|Zhejiang Univ Coll Civil Engn & Architecture Res Ctr Coastal & Urban Geotech Engn Hangzhou Zhejiang Peoples R China;

    East China Jiaotong Univ Jiangxi Key Lab Infrastruct Safety & Control Geot Nanchang Jiangxi Peoples R China;

    East China Jiaotong Univ Jiangxi Key Lab Infrastruct Safety & Control Geot Nanchang Jiangxi Peoples R China;

    East China Jiaotong Univ Jiangxi Key Lab Infrastruct Safety & Control Geot Nanchang Jiangxi Peoples R China;

    East China Jiaotong Univ Jiangxi Key Lab Infrastruct Safety & Control Geot Nanchang Jiangxi Peoples R 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

    Nonlocal elastic theory; Biot theory; Saturated soil; Dynamic response; Shallow buried cylindrical lining;

    机译：非局部弹性理论;BIOS理论;饱和土;动态响应;浅埋圆柱衬里;

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