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Seismic stability analysis of soil nail reinforced slope using kinematic approach of limit analysis

机译：极限分析的运动学方法分析土钉加筋边坡的地震稳定性

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摘要

Prediction of the critical seismic yield acceleration coefficient and the seismic permanent displacement of soil nail reinforced slope under seismic loading has been playing an important role in helping design in the earthquake-prone areas. In this paper, the seismic stability of soil nail reinforced slope is analyzed using the kinematic theorem of limit analysis. The log-spiral failure mechanism is considered and the corresponding analytical expressions are derived to calculate the critical seismic yield acceleration coefficient and the permanent displacement of slope subjected to earthquake loading. A series of calculations are carried out to illustrate the influence of inertial force on the stability of a nail-reinforced slope. Parametric studies indicate that the strength and geometry of slope as well as characteristic parameters of soil nail have a significant effect on the critical seismic yield acceleration coefficient and the permanent displacement of soil nail reinforced slope.
机译：地震荷载作用下土钉加筋边坡的临界地震屈服加速度系数和地震永久位移的预测一直在地震多发区的设计中发挥着重要作用。本文利用极限分析的运动定理分析了土钉加筋边坡的地震稳定性。考虑了对数螺旋破坏机理，推导了相应的解析表达式，计算出临界地震屈服加速度系数和地震荷载作用下边坡的永久位移。进行了一系列计算，以说明惯性力对钉子加固的边坡稳定性的影响。参数研究表明，边坡的强度和几何形状以及土钉的特征参数对临界地震屈服加速系数和土钉加筋边坡的永久位移有重要影响。

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  • 来源
    《Environmental earth sciences》 |2012年第1期|p.319-326|共8页
  • 作者

    Siming He; Chaojun Ouyang; Yu Luo;

  • 作者单位

    Key laboratory of Mountain Hazards and Surface Process,Chinese Academy of Science, Chengdu 610041, China,Institute of Mountain Hazards and Environment (IMHE),Chinese Academy of Sciences, Chengdu 610041, China;

    Key laboratory of Mountain Hazards and Surface Process,Chinese Academy of Science, Chengdu 610041, China,Institute of Mountain Hazards and Environment (IMHE),Chinese Academy of Sciences, Chengdu 610041, China;

    Key laboratory of Mountain Hazards and Surface Process,Chinese Academy of Science, Chengdu 610041, China,Institute of Mountain Hazards and Environment (IMHE),Chinese Academy of Sciences, Chengdu 610041, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    seismic stability; soil nail; critical seismic yield acceleration coefficient; permanent displacement; kinematic approach;

    机译：地震稳定性土钉;临界地震屈服加速度系数;永久位移;运动学方法;

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