منابع مشابه
Factor of safety and probability of failure in concrete dams
Risk analysis methodologies can be useful tools to help decision-makers in dam safety engineering. One of the inputs needed for Quantitative Risk Analysis is an estimate of the probability of failure of the dam under study. Existing dams have been designed using the factor of safety, which is a concept associated with a certain mathematical model of the physical behavior of the dam. In dam engi...
متن کاملHistorical and Philosophical Development of Development Sociology
Growing number of scholars in sociology has come to terms that sociology, like everything else, is a product of particular historical conditions. As there is sociology of everything. You can turn on your sociological eye no matter where you are or what you are doing, taking for example, the latent reasoning usually adopted by sociologist in viewing issues as against some others who ignorantly e...
متن کاملNonlinear Analysis of Concrete Gravity Dams by Neural Networks
Multi-layer neural networks have been used in this paper for modeling nonlinear behaviour of concrete gravity dams under earthquake excitation. Koyna dam which has been studied extensively by other authors in the past has been studied as test example in this paper too, where the nonlinear response of its crest has been modelled by the proposed algorithm. The main steps of the algorithm are as f...
متن کاملAlternative methods to determine the ice load on concrete dams
Dams in countries with cold climate are subjected to ice loads during the winter, and these may have significant influence on the dam stability. The design value of the horizontal ice load varies between 50 – 200 kN/m from the South to the North of Sweden, according to the Swedish guideline for dam safety (RIDAS 2011). However, the size of the ice load cannot be dictated by the geographic locat...
متن کاملConcrete Gravity Dams and Traveling Wave Effect along Reservoir Bottom
In the present article, effect of non-uniform excitation of reservoir bottom on nonlinear response of concrete gravity dams is considered. Anisotropic damage mechanics approach is used to model nonlinear behavior of mass concrete in 2D space. The tallest monolith of Pine Flat dam is selected as a case study. The horizontal and vertical components of 1967 Koyna earthquake is used to excite the s...
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ژورنال
عنوان ژورنال: Doboku Gakkai Ronbunshu
سال: 1992
ISSN: 0289-7806,1882-7187
DOI: 10.2208/jscej.1992.451_13