ABSTRACT

The seismic performance of earth dams can nowadays be performed via dynamic analyses using constitutive models of sufficient accuracy in describing cyclic soil behavior. However, a number of assumptions different from soil model affect the problem as a whole. In this paper, a 2D model of a simplified homogeneous earth dam is developed, to assess the influence of bedrock compliance, vertical component of ground motion, stabilizing berms, and initial pore water pressure distribution on its seismic performance, thus providing some guidance on the choices that should be adopted for a safe assessment of the seismic performance of existing earth dams.

中文翻译：

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输入假设对土坝抗震性能评价的影响

摘要

如今，土坝的抗震性能可以通过动态分析来执行，该分析使用在描述循环土壤行为方面具有足够准确度的本构模型。然而，许多不同于土壤模型的假设会影响整个问题。本文建立了一个简化的均质土坝二维模型，评估了基岩顺应性、地震动竖向分量、稳定护堤和初始孔隙水压力分布对其抗震性能的影响，从而为抗震性能提供一定的指导。安全评估现有土坝抗震性能应采用的选择。