EFFECT OF SUBMERGENCE RATIO OF PILE CAP ON SCOUR HOLE AT COMPLEX BRIDGE PIERS
نویسندگان
چکیده
منابع مشابه
Effect of collar on time development and extent of scour hole around cylindrical bridge piers
An experimental approach was carried out to study the time development and extension of scouring around a circular pier protected by a collar. The experiments included the study of scouring around an unprotected pier as well as the pier protected with collars located at different levels. Width of collars was 3 times the pier diameter. It was found that with collars, though the scour depth and t...
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Failure of the bridges due to local scour around their piers can cause serious life losses and property damages and create significant environmental problems. In this experimental study, scour hole geometry around circular bridge piers were investigated. The experiments were carried out in a rectangular flume 80 cm wide, 18.6 m long and 75 cm high by using uniform sediment with a median diamete...
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A reliable prognostics framework is essential to prevent catastrophic failure of bridges due to scour. In the U.S., scour accounts for almost 60% of bridge failures. Currently available techniques in the literature for predicting scour are mostly based on empirical equations and deterministic regression models, like Neural Networks and Support Vector Machines, and do not predict the evolution o...
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Scour around hydraulic structures is an inevitable phenomenon . Recognition of this phenomenon and dealing with it is an issue considering which will ensure the project success . Local scour at piers has been reported as the most important factor in the destruction of the bridges . The use of submerged and non-submerged piles is one of the scour control methods . Submerged piles have been rarel...
متن کاملEffect of Collars and Bars in Reducing the Local Scour Around Cylindrical Bridge Piers
In the present work, the efficiency of single and double collar in reducing scour rate and depth around cylindrical bridge piers was studied experimentally. In order to reduce the strength of wake vortices, different numbers of bars were also installed at the downstream face of the pier in combination with a single collar. The best result was achieved for double collar when the collars were ins...
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ژورنال
عنوان ژورنال: ERJ. Engineering Research Journal
سال: 2014
ISSN: 1110-1180
DOI: 10.21608/erjm.2014.66882