Numerical And Experimental Study On Spillway Model Of Water Conservancy Project Of Huinanxian Tuanlinzi

The spillway is a structure that is widely used to drain buildings.It is mainly to combine the layout with the surrounding environment,and it is necessary to use the geographical and topographic conditions to design a reasonable,economical and applicable spillway.Based on the Huilin County Tuanlinzi Water Control Project,this paper first introduces its research background,significance and development status of energy dissipator,as well as the development process at home and abroad.Through the theoretical basis,the physical hydraulic test model is made,and the hydraulic model is applied.The hydraulic characteristics of the project were studied.The data analysis and physical experiment model were used to optimize the comparison and selection of the plunge pool segment.The main research contents include:(1)The calculation principle and deformation formula of the water surface line,and plot the water level flow relationship curve are studied;(2)Calculation of the water jump,resistance and efficiency equation of the T-shaped pier is conducted;(3)The minimum length and depth of the stilling pool by several flow discharges under specific conditions is determined.The auxiliary energy dissipator such as the force-reducing pier and the tail stern is added,and the length and depth of the stilling pool are optimized after reducing the water depth after the jump.If an auxiliary energy dissipator is added,the structure and size of the auxiliary energy dissipator are determined according to the results of the energy dissipation test;(4)The energy dissipation rates of T-shaped piers under different conditions and drawing the Oringin fold line comparison chart is compared,and the corresponding optimal scheme is obtained.The accuracy of the water level flow relationship of the overflow dam is checked by the calculation of the surface line.Under the condition of determining the building grade and flood level,it is known that the flow rate meets the requirements of the spillway stilling pool for increasing the auxiliary energy dissipator,so as to expand The next model test is to add auxiliary energy dissipator(ie“T-shaped pier”energy dissipator)in the stilling pool to achieve the purpose of reducing the energy and reducing the water depth after the jump to achieve the optimization project,and find out through theory and experiment.The optimal T-shaped pier is used to reduce the water flow after the discharge,so as to optimize the length and depth of the stilling pool.Provide some reference for the construction of spillway roads in the future.