Interpreting the Camastra dam behaviour in 40 years of operation

摘要

The Camastra dam is a zoned earth dam in operation for more than 40 years. During the construction (1963-1964) the dam site was classified as non-seismic and only some years later it was reclassified as a second category seismic zone. The dam is, therefore, a typical example of earth dam designed without taking seismic loads into account and that should be seismically re-classified at present. The paper reports the main steps that should be followed to perform the seismic analysis of an existing dam, starting from the interpretation of the dam monitored response from the time of construction until the present.