A review of considerations on seismic safety of embankments and earth and rock-fill dams |
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| Authors: | M Yener Ozkan |
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| Institution: | Soil Mechanics and Foundations Division, Civil Engineering Department, Middle East Technical University, Ankara, Turkey |
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| Abstract: | An attempt has been made to summarise the methods of approach used in assessing the dynamic behaviour and safety of earth and rock-fill dams under seismic shaking until about the present time, from the soil engineer's point of view. Shortcomings of the pseudo-static method, procedures to estimate the permanent deformations, liquefaction effects, and experience gained from the previous events have been reviewed. Observing that the most important cause of instability is the occurence liquefaction during ground motions, cyclic approach and steady-state approach in assessing the liquefaction potential have been addressed and recent practical approaches of analysis and design have been referred. It has been found noteworthy to recall that incidence of failure or serious damage to well-engineered dams has not been experienced, even under strong ground shaking. |
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| Keywords: | Earthquakes Dam safety Earthfill dam Rockfill dam Liquefaction Dynamic analysis |
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