Research on Municipal Drainage Design Based on Urban Storm Water Model
The acceleration of urbanization has put for-ward higher requirements for the design of urban mu-nicipal drainage system.The SWMM storm water model is used to simulate the urban storm,and the urban water accumulation after the storm is analyzed.The results show that under the normal drainage condition of the rain perfo-rated strainer,when the road width is 9-10 m,the deepest water accumulation point on the surface of the street with a length of about 40 m is about 0.18 m,and the water depth of the shallowest water accumulation point is about 0.04 m,which will not affect the traffic.When the rain perforat-ed strainer is blocked and the ground water accumulation reaches 2-4 times of the normal drainage of the rain per-forated strainer,it will affect the normal urban traffic.On this basis,the design scheme of municipal drainage is put forward,which aims to provide some reference for the de-velopment of urban municipal drainage system.
SWMM storm water modelurban stormur-ban water accumulationnumerical simulationdrainage designrain perforated strainer blockage
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