Simultaneous Effect of Collar and Roughness on Reducing and Controlling the Local Scour around Bridge Abutment
نویسندگان
چکیده
منابع مشابه
Effect 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...
متن کاملlaboratory investigation of performance of l-shaped collar on reduction of local scour around bridge abutment
scour around bridge piers is one of the most important fields of hydraulic research. local scour around bridge piers and abutment is one of the main reasons of bridge failures. in the field of scour at the bridges, researches are more focus on scour of piers in compare with abutment. while the available information on the bridge failures required cost, the major problems are related to abutment...
متن کاملEffect 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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ژورنال
عنوان ژورنال: Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
سال: 2017
ISSN: 1211-8516,1211-8516
DOI: 10.11118/actaun201765020491