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Life-span of storage dams

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Abstract:

Martin Wieland explores the factors which could impact on the useful life of a dam. The main factors, which have an impact on the service life and which may call for upgrading of a dam include changes in the design criteria based on new information obtained since the initial design of the dam, results of risk assessments, and ageing of construction and foundation materials and components. Dense frost-resistant concrete should have a very long service life. Concrete dams, which do not have any steel reinforcement, have a much longer service life than reinforced concrete structures exposed to weather. The service life of a well-designed, well-constructed and well-maintained and monitored embankment and concrete dams can easily reach 100 years. Neglecting civil maintenance will unequivocally lead to a shortened life-span, which signifies an economic loss, and in a loss of confidence in the safety of dams by the affected people. For full article and pictures: http://www.waterpowermagazine.com/storyprint.asp?sc=2055594


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