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首页> 外文期刊>Arabian Journal for Science and Engineering >Numerical Investigation of Seismic Isolation Layer Performance for Tunnel Lining in Shanghai Soft Ground
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Numerical Investigation of Seismic Isolation Layer Performance for Tunnel Lining in Shanghai Soft Ground

机译：上海软土地隧道衬砌地震隔离层性能的数值研究

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摘要

An isolation layer around the cross-section of a tunnel lining would be the simplest and most effective shock absorption measure which can reduce the intensity of seismic action and minimise the deformation transferred from surrounding soil to the tunnel lining. This study explored the effectiveness of foamed concrete and silicone rubber as potential seismic isolation layers in clay soft soil. A 2D finite element model was proposed to accurately predict the seismic response of the tunnel. Experimental data collected from Shanghai metropolitan tunnel were used to validate the developed model. Different tunnel lining and seismic isolation characteristics, as well as tunnel buried depths, were considered for each seismic isolation layer. It was revealed that the silicone rubber considerably reduced the deformation of the tunnel lining under a seismic load and can therefore be used in a seismic design of a tunnel in soft clay soil.
机译：隧道衬里横截面周围的隔离层将是最简单，最有效的减震措施，可以降低地震作用的强度，并最大限度地减少从周围土壤转移到隧道衬里的变形。 本研究探讨了泡沫混凝土和硅橡胶作为粘土软土壤潜在地震隔离层的有效性。 提出了2D有限元模型，以准确地预测隧道的地震响应。 从上海大都市隧道收集的实验数据用于验证开发的模型。 每个地震隔离层考虑不同的隧道衬里和地震隔离特性以及隧道埋地深度。 据透露，硅橡胶在地震载荷下显着降低了隧道衬里的变形，因此可以用于软粘土土壤中隧道的地震设计。

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  • 来源
    《Arabian Journal for Science and Engineering》 |2021年第11期|11355-11372|共18页
  • 作者

    Neurly Josita Anato; Ogoubi Cyriaque Assogba; Aiping Tang; Diakite Youssouf;

  • 作者单位

    School of Civil Engineering Harbin Institute of Technology 202 Haihe Road Nangang District P.O. Box 2518 Harbin 150090 Heilongjiang People’s Republic of China;

    School of Transportation Science and Engineering Harbin Institute of Technology Harbin 150090 People’s Republic of China;

    School of Civil Engineering Harbin Institute of Technology 202 Haihe Road Nangang District P.O. Box 2518 Harbin 150090 Heilongjiang People’s Republic of China;

    School of Civil Engineering Harbin Institute of Technology 202 Haihe Road Nangang District P.O. Box 2518 Harbin 150090 Heilongjiang People’s Republic of China;

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

    Numerical analysis; Seismic isolation layers; Tunnel lining; Seismic performance; Soft soil; Soft ground;

    机译：数值分析;地震隔离层;隧道衬里;地震表现;软土;软基;

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