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首页> 外文期刊>Soil Dynamics and Earthquake Engineering >Stability analysis of a slope subject to real accelerograms by finite elements. Application to San Pedro cliff at the Alhambra in Granada
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Stability analysis of a slope subject to real accelerograms by finite elements. Application to San Pedro cliff at the Alhambra in Granada

机译:有限元分析真实加速度图的边坡稳定性。在格拉纳达阿罕布拉的San Pedro悬崖上的应用

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摘要

The dynamic stability analysis of slopes is often conducted by the traditional method of slices, using pseudo-static calculations. However, the response of a geotechnical structure subjected to seismic loads can be studied through a dynamic finite element analysis, which can be considered one of the most complete available tools, as information about the stress distribution and the deformations can be obtained. The dynamic analysis of the stability of San Pedro cliff at the Alhambra in Granada is studied in this paper. The results have been compared with pseudo-static calculations worked out with the method of slices. Real accelerograms have been selected for the dynamic tests. Thorough in situ and laboratory tests have been conducted in order to properly characterize the cliff. The soil constitutive model is also explained in this paper. Finally, the influence of the sources of energy dissipation has been studied through the material damping, the integration scheme and the boundary conditions. (C) 2014 Elsevier Ltd. All rights reserved.
机译:边坡的动力稳定性分析通常采用传统的切片方法,使用拟静力计算进行。但是,可以通过动态有限元分析来研究岩土结构承受地震载荷的响应,因为可以获取有关应力分布和变形的信息,因此可以将其视为最完整的可用工具之一。本文对格拉纳达阿罕布拉的圣佩德罗悬崖的稳定性进行了动力分析。将结果与使用切片方法进行的伪静态计算进行了比较。动态测试已选择了真实的加速度图。为了适当地表征悬崖,已经进行了充分的原位和实验室测试。本文还对土壤本构模型进行了解释。最后,通过材料阻尼,积分方案和边界条件研究了能量耗散源的影响。 (C)2014 Elsevier Ltd.保留所有权利。

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