نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی عمران، دانشگاه زنجان، زنجان، ایران
2 گروه مهندسی عمران، موسسه آموزش عالی پارسیان، قزوین، ایران
کلیدواژهها
موضوعات
عنوان مقاله English
نویسندگان English
There are various methods to prevent river bank erosion, one of them is groin. These structures are used to control the natural movement of the bed and reduce the movement of sediments by reducing the power of the water flow. Groins are divided into permeable and impermeable types, the permeable form of which is used in rivers where the amount of suspended load is high. By reducing the speed of the flow in the groin field, the sedimentary materials are quickly deposited. This process and then creating a thick sedimentary layer, keeping the erosion flow away from the groin area and it provides the stable conditions necessary to protect the banks. In this study, the performance of parallel permeable groin and single permeable groin has been compared. For this purpose, a flume with a length of 5 meters, width of 30 cm and height of 30 cm has been used. Experiments have been conducted with 60 and 40% permeability rates in clear water conditions, and the observations from the experiments have been made in relation to the maximum scour depth and the changes in the topography of the flume bed have been compared.
کلیدواژهها English
