Statistics and probabilities of various types of dam failures / A.H. Tawil and M. Houston.
Material type:
TextPublication details: 1986. AB : Acres international Ltd.,Description: 1 v. (various pagings) : ill. , maps ; 28 cmOnline resources: Abstract: According to records of dam failures, large earthfill modern dams have a probability of failure of about 1 x 10 per dam year. However this average probability does not account for the wide variation in probabilities of failure depending on the circumstances. The probablity of failure is much lower, for example, for dams that survive the critical test of first filling. About one half of dam failures occur in the first five years after construction and the remainder occur fairly uniformly throughout the rest of the 100 year design life. Therefore the average probability of failure is approximately 1 x 10 per dam year for the first 5 years and 5 x 10 subsequently. The probability of failure also depends on the type of foundation and the success of the foundation treatment but quantifying the effect of the foundation is not possible because there are too few case histories. Dam failure statistics are more helpful in alerting designers to frequent causes of failure. For example, for earth
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Includes bibliographical references.
According to records of dam failures, large earthfill modern dams have a probability of failure of about 1 x 10 per dam year. However this average probability does not account for the wide variation in probabilities of failure depending on the circumstances. The probablity of failure is much lower, for example, for dams that survive the critical test of first filling. About one half of dam failures occur in the first five years after construction and the remainder occur fairly uniformly throughout the rest of the 100 year design life. Therefore the average probability of failure is approximately 1 x 10 per dam year for the first 5 years and 5 x 10 subsequently. The probability of failure also depends on the type of foundation and the success of the foundation treatment but quantifying the effect of the foundation is not possible because there are too few case histories. Dam failure statistics are more helpful in alerting designers to frequent causes of failure. For example, for earth