Probabilistic Seismic Analysis of the Deep Sliding Stability of a Concrete Gravity Dam-Foundation System
There are various uncertainties in the design, construction, and operation of dams. These uncertainties have an important impact on the seismic response and seismic safety evaluation of concrete dams. In this research, a typical nonoverflow monolith of a concrete gravity dam is selected as a case st...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8850398 |
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| author | Hui Liang Shengshan Guo Yifu Tian Jin Tu Deyu Li Chunli Yan |
| author_facet | Hui Liang Shengshan Guo Yifu Tian Jin Tu Deyu Li Chunli Yan |
| author_sort | Hui Liang |
| collection | DOAJ |
| description | There are various uncertainties in the design, construction, and operation of dams. These uncertainties have an important impact on the seismic response and seismic safety evaluation of concrete dams. In this research, a typical nonoverflow monolith of a concrete gravity dam is selected as a case study for the sliding stability analysis. Based on the analysis and demonstration of parameter sensitivity of friction coefficients and cohesion and their influence on the deep antisliding stability of the dam-foundation system, the probabilistic seismic analysis of a gravity dam-foundation system is carried out through Monte Carlo analysis with a large sample number. Damage levels are defined based on the sliding instability failure mode along with the corresponding threshold values of the damage index. Thus, seismic fragility analysis is investigated, and seismic fragility curves are obtained for the vulnerability assessment under earthquake hazards. The overall seismic stability of the gravity dam is evaluated, which provides the basis for the seismic safety evaluation in the probabilistic framework. |
| format | Article |
| id | doaj-art-4e46d06d924840368a5d0a33128b3a77 |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-4e46d06d924840368a5d0a33128b3a772025-08-20T02:38:47ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88503988850398Probabilistic Seismic Analysis of the Deep Sliding Stability of a Concrete Gravity Dam-Foundation SystemHui Liang0Shengshan Guo1Yifu Tian2Jin Tu3Deyu Li4Chunli Yan5State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, Beijing 100048, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, Beijing 100048, ChinaNorth China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, Beijing 100048, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, Beijing 100048, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, Beijing 100048, ChinaThere are various uncertainties in the design, construction, and operation of dams. These uncertainties have an important impact on the seismic response and seismic safety evaluation of concrete dams. In this research, a typical nonoverflow monolith of a concrete gravity dam is selected as a case study for the sliding stability analysis. Based on the analysis and demonstration of parameter sensitivity of friction coefficients and cohesion and their influence on the deep antisliding stability of the dam-foundation system, the probabilistic seismic analysis of a gravity dam-foundation system is carried out through Monte Carlo analysis with a large sample number. Damage levels are defined based on the sliding instability failure mode along with the corresponding threshold values of the damage index. Thus, seismic fragility analysis is investigated, and seismic fragility curves are obtained for the vulnerability assessment under earthquake hazards. The overall seismic stability of the gravity dam is evaluated, which provides the basis for the seismic safety evaluation in the probabilistic framework.http://dx.doi.org/10.1155/2020/8850398 |
| spellingShingle | Hui Liang Shengshan Guo Yifu Tian Jin Tu Deyu Li Chunli Yan Probabilistic Seismic Analysis of the Deep Sliding Stability of a Concrete Gravity Dam-Foundation System Advances in Civil Engineering |
| title | Probabilistic Seismic Analysis of the Deep Sliding Stability of a Concrete Gravity Dam-Foundation System |
| title_full | Probabilistic Seismic Analysis of the Deep Sliding Stability of a Concrete Gravity Dam-Foundation System |
| title_fullStr | Probabilistic Seismic Analysis of the Deep Sliding Stability of a Concrete Gravity Dam-Foundation System |
| title_full_unstemmed | Probabilistic Seismic Analysis of the Deep Sliding Stability of a Concrete Gravity Dam-Foundation System |
| title_short | Probabilistic Seismic Analysis of the Deep Sliding Stability of a Concrete Gravity Dam-Foundation System |
| title_sort | probabilistic seismic analysis of the deep sliding stability of a concrete gravity dam foundation system |
| url | http://dx.doi.org/10.1155/2020/8850398 |
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