نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی عمران، دانشگاه زنجان، زنجان، ایران
2 کارشناسی ارشد، گروه مهندسی عمران، موسسه آموزش عالی پارسیان، قزوین، ایران
کلیدواژهها
موضوعات
عنوان مقاله English
نویسندگان English
The construction of water structures such as groin is done to protect the beaches and prevent their erosion. These structures disrupt the uniform regime of flow and sediment transport. In most cases, these conditions lead to local scouring of the bed. In order to protect the bed and minimize the depth of the scour hole, various arrangements for the groins have been proposed and tested. In this study, the influence of the angle of circulation in the radial arrangement of the permeable groin and its comparison with the direct permeable groin has been investigated. For this purpose, a flume with a length of 5 meters, a width of 30 cm and a height of 30 cm was used, and tests were performed with three different permeability rates of 40, 60 and 80% in clear water conditions. The results show that in the radial arrangement, the maximum depth of the scour hole at the toe of the groin and its width have decreased compared to the direct arrangement, and the radial arrangement has a better performance to prevent the erosion of the river bed.
کلیدواژهها English
