- Title
- A direct time-domain procedure for the seismic analysis of dam–foundation–reservoir systems using the scaled boundary finite element method
- Creator
- Qu, Yanling; Chen, Denghong; Liu, Lei; Ooi, Ean Tat; Eisenträger, Sascha; Song, Chongmin
- Date
- 2021
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/179045
- Identifier
- vital:15514
- Identifier
-
https://doi.org/10.1016/j.compgeo.2021.104364
- Identifier
- ISBN:0266-352X (ISSN)
- Abstract
- In this paper, a direct time-domain procedure for the seismic analysis of dam–reservoir–foundation interactions is presented based on the scaled boundary finite element method (SBFEM). The SBFEM is a semi-analytical method and requires the discretization of boundary only. The geometric complexity in the bounded dam–reservoir–foundation system is easily handled in the SBFEM using quadtree meshes where each structural component can be discretized independently. The elastic wave fields in the unbounded foundation are rigorously captured through SBFE solutions in terms of displacement unit-impulse response functions, while the acoustic wave propagation in the semi-infinite reservoir is modelled by the SBFE-based doubly asymptotic open boundary. The input of seismic excitations is addressed by incorporating the Domain Reduction Method (DRM) into the SBFEM. Cracks are modelled efficiently and accurately by combining the SBFEM and quadtree meshes. The accuracy and efficiency of the proposed methodology is investigated by studying several benchmarks, Pine Flat dam and Jin'anqiao dam. © 2021 Elsevier Ltd
- Publisher
- Elsevier Ltd
- Relation
- Computers and Geotechnics Vol. 138, no. (2021), p.
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- Copyright © 2021 Elsevier Ltd
- Subject
- 0905 Civil Engineering; 0914 Resources Engineering and Extractive Metallurgy; 0915 Interdisciplinary Engineering; Dam–reservoir–foundation interaction; Domain reduction method; Scaled boundary finite element method; Seismic analysis; Unbounded domain
- Reviewed
- Funder
- This work was supported by the Australian Research Council — Linkage Project ( LP160101229 ), Melbourne Water, Murray-Darling Basin Authority, Goulburn-Murray Water, SunWater , the National Natural Science Foundation of China (Grant No. 52079072 ), the Natural Science Foundation of Hubei Province (Grant No. 2018CFB652 ), China Scholarship Council (CSC), and the Open Research Fund of State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China , China Institute of Water Resources and Hydropower Research, China (Grant No. IWHR-SKL-201716 ).
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