In Europe and elsewhere the economically feasible water resources have been greatly developed until the 1970s. =oh6;Ojt
Although large dams belong to the first structures, which have been designed systematically against earthquakes RDqC$Gu
since the 1930s, the seismic safety of these dams is unknown, as most of them have been designed using seismic I^ >zr.zA
design criteria and methods of analysis that are considered obsolete today. The fact that no major dams have @H_LPn
failed during earthquakes and that few lives have been lost (except in the case of tailings dam failures) may give -+PPz?0
the impression that well-designed dams are safe against earthquakes. We need to re-evaluate the seismic safety
u-K5
of existing dams based on current state-of-the-art practice and rehabilitate existing dams if necessary. &pba~X.u
Additionally, there are a large number of smaller dams, especially earth structures, which were built for hPk+vvXtK
irrigation or water supply by organisations or villagers with little experience in dam construction. Earthquake 2(c#m*Q!b
effects on these dams have rarely been considered