Seismic dynamic responses of earth-rock dam considering wave and seepage | |
Jing, Wei1; Wang, Jingxuan2 | |
刊名 | Journal of Vibroengineering |
2020-03-01 | |
卷号 | 22期号:2页码:403-415 |
关键词 | Dams Dynamic response Liquid sloshing Numerical methods Rocks Seepage Shear stress Water management Fluid solid interaction Horizontal displacements Long-period earthquakes Material non-linearity Near-field earthquakes Numerical calculation model Seismic dynamic response Water conservancy projects |
ISSN号 | 13928716 |
DOI | 10.21595/jve.2019.20754 |
英文摘要 | Earth-rock dam plays an important role in water conservancy project, but there were many damage cases caused by earthquakes, so it is necessary to investigate dynamic responses of earth-rock dams under combined action of earthquake and wave. Considering material nonlinearity, seepage, wave action, fluid-solid interaction, liquid sloshing, a numerical calculation model is established, and Arbitrary Lagrange Eulerian method is used to solve the nonlinear dynamic coupling problem. Dynamic responses under wave, earthquake and wave+earthquake are studied comparatively, and influences of near and far field earthquakes and PGA on dynamic responses are investigated. Results show that values and distributions of dynamic responses under wave and earthquake are quite different, and dynamic responses were further increased considering combination of earthquake and wave. Dynamic responses under far field long period earthquake is significantly larger than that under near field earthquake. With the increase of PGA, increase trends of horizontal displacement, vertical displacement and plastic strain are increased, while increase trend of maximum shear stress is slowed down. It can be obtained that when earthquake intensity is large, earth-rock dam will be easily damaged due to excessive deformation. © 2020 Wei Jing, et al. |
WOS研究方向 | Engineering |
语种 | 英语 |
出版者 | JVE International |
WOS记录号 | WOS:000522828200013 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/150719] |
专题 | 土木工程学院 |
作者单位 | 1.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China |
推荐引用方式 GB/T 7714 | Jing, Wei,Wang, Jingxuan. Seismic dynamic responses of earth-rock dam considering wave and seepage[J]. Journal of Vibroengineering,2020,22(2):403-415. |
APA | Jing, Wei,&Wang, Jingxuan.(2020).Seismic dynamic responses of earth-rock dam considering wave and seepage.Journal of Vibroengineering,22(2),403-415. |
MLA | Jing, Wei,et al."Seismic dynamic responses of earth-rock dam considering wave and seepage".Journal of Vibroengineering 22.2(2020):403-415. |
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