| Title | BEM-FEM dynamic analyses of arch dam-fluid system |
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| Author | Mircevska, V; Nastev, M |
| Source | Proceedings of 2ECEES, 2nd European Conference on Earthquake Engineering and Seismology; 2014 p. 1-5  Open Access |
| Links | Online - En ligne
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| Year | 2014 |
| Alt Series | Natural Resources Canada, Contribution Series 20200350 |
| Publisher | European Association for Earthquake Engineering |
| Meeting | 2ECEES, 2nd European Conference on Earthquake Engineering and Seismology; Istanbul; TR; August 25-29, 2014 |
| Document | Web site |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf |
| Subjects | hydrogeology; engineering geology; geophysics; Nature and Environment; Science and Technology; dams; reservoirs; earthquakes; earthquake risk; seismic risk; hydrodynamics; seismic waves; topography;
modelling; pressure; Methodology; Infrastructures |
| Illustrations | 3-D diagrams; sketch maps; profiles; tables |
| Program | Public Safety Geoscience Quantitative risk assessment project |
| Released | 2014 08 01 |
| Abstract | The dam-fluid interaction is significantly affected by the irregularity of the terrain in the vicinity of the dam-fluid interface. The joint vibration of the dam and canyon walls generates pressure and
dilatational waves as functions of several variables. Besides the geometry and mechanical properties of the dam-reservoir system, the distance to the non-reflecting truncation boundary is important parameter to be considered in the computation of the
hydrodynamic forces. The direction of the seismic excitation should also be taken into account. Different modelling scenarios of arch dam-fluid-reservoir systems were conducted and compared via a time dependent indicator referred to as 'cumulative
hydrodynamic energy'. The comparison indicates that, depending on the direction of excitation, the combined vibration of the dam and reservoir with complex topography could generate between 10% and 100% higher hydrodynamic energy at the dam-fluid
interface than that generated by a dam-regular reservoir system. The highest cumulative hydrodynamic energy was obtained for cross-stream excitation. |
| Summary | (Plain Language Summary, not published)
The dam-fluid interaction is significantly affected by the irregularity of the terrain in the vicinity of the dam-fluid interface. Numerical results show
that the combined vibration of the dam and reservoir with complex topography could generate between 10% and 100% higher hydrodynamic energy at the dam-fluid interface than that generated by a regular reservoir. |
| GEOSCAN ID | 327067 |
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