Numerical investigation of the response of the Yele rockfill dam during the 2008 Wenchuan Earthquake

Title: Numerical investigation of the response of the Yele rockfill dam during the 2008 Wenchuan Earthquake
Authors: Han, B
Zdravkovic, L
Kontoe, S
Taborda, D
Item Type: Journal Article
Abstract: © 2016 Elsevier LtdIn this paper the seismic response of a well-documented Chinese rockfill dam, Yele dam, is simulated and investigated employing the dynamic hydro-mechanically (HM) coupled finite element (FE) method. The objective of the study is to firstly validate the numerical model for static and dynamic analyses of rockfill dams against the unique monitoring data on the Yele dam recorded before and during the Wenchuan earthquake. The initial stress state of the dynamic analysis is reproduced by simulating the geological history of the dam foundation, the dam construction and the reservoir impounding. Subsequently, the predicted seismic response of the Yele dam is analysed, in terms of the deformed shape, crest settlements and acceleration distribution pattern, in order to understand its seismic behaviour, assess its seismic safety and provide indication for the application of any potential reinforcement measures. The results show that the predicted seismic deformation of the Yele dam is in agreement with field observations that suggested that the dam operated safely during the Wenchuan earthquake. Finally, parametric studies are conducted to explore the impact of two factors on the seismic response of rockfill dams, i.e. the permeability of materials comprising the dam body and the vertical ground motion.
Issue Date: 22-Jun-2016
Date of Acceptance: 6-Jun-2016
ISSN: 1879-341X
Publisher: Elsevier
Start Page: 124
End Page: 142
Journal / Book Title: Soil Dynamics and Earthquake Engineering
Volume: 88
Copyright Statement: © 2016 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Keywords: Strategic, Defence & Security Studies
0404 Geophysics
0905 Civil Engineering
Publication Status: Published
Appears in Collections:Civil and Environmental Engineering

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