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本文用二维有限单元法,对岩基上不同坝高、边坡的心墙堆石坝、斜墙堆石坝等不同坝型,通过输入不同的地震,进行了三十种不同情况的地震动力反应分析。考虑到材料的非线性特性,分析了各种因素对坝体中反应加速度的影响,认为输入地震的卓越周期和加速度大小以及材料的非线性特性是影响堆石坝地震反应的主要因素。
In this paper, two-dimensional finite element method is used to simulate different types of earthquakes on rockfill foundation with different dam heights and slope core rockfill dam and inclined wall rockfill dam. By inputting different earthquakes, thirty different kinds of earthquakes Dynamic Response Analysis. Considering the nonlinear characteristics of the material, the influence of various factors on the acceleration of the dam body is analyzed. It is considered that the remarkable period and acceleration of the input earthquake and the nonlinear characteristics of the material are the main factors affecting the seismic response of the dam.