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Seismic verification of long cylindrical underground structures considering Rayleigh wave effects

机译：考虑瑞利波效应的长圆柱地下结构的抗震验证

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摘要

The 3-D flexible thin shell theory is employed for the strain analysis of near-surface long cylindrical underground structures such as buried pipelines and thin-walled tunnels, against seismic Rayleigh wave propagation. Analytical solutions are initially derived separately for the normal and shear components of Rayleigh waves and are consequently superimposed over time, taking into account the spatial variation of strains over the cross-section. Design strains are finally established by maximizing the analytical expressions against the unknown, random angles of wave incidence. The proposed methodology is compared to the current state-of-practice, via application of the proposed relations to an example problem.
机译：3-D柔性薄壳理论用于近地表长圆柱地下结构（如地下管道和薄壁隧道）的应变分析，以抵抗地震瑞利波传播。最初是针对瑞利波的法向分量和剪切分量分别得出解析解，因此考虑到横截面应变的空间变化，将其随时间叠加。最后，通过针对未知，随机的波入射角最大化分析表达式来建立设计应变。通过将建议的关系应用于示例问题，将建议的方法与当前的实践状态进行比较。

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  • 来源
    《Tunnelling and underground space technology》 |2011年第6期|p.789-794|共6页
  • 作者

    George P. Kouretzis; George D. Bouckovalas; Dimitrios K. Karamitros;

  • 作者单位

    Department of Ceotechnkal Engineering, Faculty of Civil Engineering, National Technical University of Athens, 9, froon Pofytehniou Str., CR-S57 SO, Athens, Greece;

    Department of Ceotechnkal Engineering, Faculty of Civil Engineering, National Technical University of Athens, 9, froon Pofytehniou Str., CR-S57 SO, Athens, Greece;

    Department of Ceotechnkal Engineering, Faculty of Civil Engineering, National Technical University of Athens, 9, froon Pofytehniou Str., CR-S57 SO, Athens, Greece;

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  • 正文语种 eng
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  • 关键词

    earthquakes; pipelines; tunnels; rayleigh waves; strains; design;

    机译：地震;管道;隧道;瑞利波;应变;设计;

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