چکیده مقاله
Scouring is defined as a natural phenomenon caused by the flow of water in rivers and streams It is the consequence of the erosive action of flowing water, which removes and erodes material from the vicinity of bridge piers Experiments were carried out in a flume that its length, width and depth were 10, 0 3 and0 5 meter, respectively The pier diameter was 25mm and d50 0 8mm To investigation of the collar effect used from three different sizes of square collar with 1 5 , 2 ,2 5 D W D : pier diameter andW : width of square collar that are located in two different heights into the bed surface with 0 4 , 0 D Z The results showed that installation of 2 5D collar under the bed can reduce scour depth approximately 70% This reduction is up to 20% and 40% for 1 5D and 2D collars, respectively
کلیدواژهها
نویسندگان
Hossein shariati
Master of science student, Ferdousi Agricultural University of Mashhad, Iran
seyed javad meshkavati toroujeni
Master of science student, Sari Agricultural Sciences and Natural Resources University, Iran
saeed reza khodashenas
Assistant Professor, Water engineering department, Ferdousi Agricultural University
kazem esmaili
Hossein shariati Master of science student, Ferdousi Agricultural University of Mashhad, Iranseyed javad meshkavati toroujeni Master of science student, Sari Agricultural Sciences and Natural Resources University, Iransaeed reza khodashenas Assistant Professor, Water engineering department, Ferdousi Agricultural University
شیوه ارجاع
shariati, Hossein and meshkavati toroujeni, seyed javad and khodashenas, saeed reza and esmaili, kazem,1391,Investigation of Square Collar application in Reduction of Local Scour around Bridge Piers,9th International Congress on Civil Engineering,Isfahan
ارائهشده در
مجموعه مقالات نهمین کنگره بین الملی مهندسی عمران19 اردیبهشت 1391 · اصفهان