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Indexed by:期刊论文

Date of Publication:2016-06-01

Journal:JOURNAL OF VIBROENGINEERING

Included Journals:SCIE、EI

Volume:18

Issue:4

Page Number:2278-2292

ISSN No.:1392-8716

Key Words:rockfill; dynamic characteristics analogy method; prototype monitoring

Abstract:Dynamic numerical analysis by the finite element method (FEM) is widely used for the seismic performance analysis of earth-rockfill dams. The dynamic characteristics of soil, which can be measured by dynamic tests, determine the results of the FEM analysis. However, due to their high costs and long duration, dynamic tests are not feasible for many small- to middle-scale earth-rockfill dams. As a result, the analogy method is employed. Because the traditional analogy method is highly dependent on personal experience, it lacks objective and accurate orientations. In this paper, a new method to analogize the dynamic characteristics of rockfill by prototype monitoring and statistic curves is developed. To examine its effectiveness, the dynamic parameters of a middle-scale concrete-face rockfill dam (CFRD) were analogized. The results of the dynamic FEM analysis agree well with the general rules which were shown in the earthquake response and the dynamic FEM analysis response of the same type of CFRD.