Urban Ramp Rainwater Landscape Design Based On Hydrological Simulation(MIKE)data Analysis

In order to better realize the blue-green interaction between road landscape and road rainwater,and solve the problem of fine design of rainwater landscape,this paper will use the simulation results of computer software model to make innovative design of urban road rainwater landscape according to local conditions.By comparing the application of SWMM,sustain,Swat,Mike and other software in rainwater and flood management,it is found that Mike model is more suitable for rainwater runoff simulation of the site.Through the definition of rainwater landscape,road slope,urban road drainage,rainwater landscape and other related concepts;Select classic cases at home and abroad,analyze their practical experience and lessons,and summarize the relevant experience of urban road rainwater landscape design;By analyzing the current land use situation and rainfall data,it is determined that the ponding point,ponding depth,rainwater runoff speed and runoff direction under the condition of urban road flood disaster can be simulated by Mike software.The simulation results of Mike software show that when the return period of rainwater is two years,there will be two ponding points with a depth of about 1.5m on the South Xi’an Park Road,two sections with a fast rainwater runoff speed of 1.2m/s,five sections with a rainwater runoff speed of 0.2m/s and four obvious water impact sections from West to East.According to the simulation results,low impact measures such as rainwater garden,sunken green space and pervious pavement are adopted tocarry out the positioning design of the green landscape of the road green space corresponding to the ponding condition of the road section on the basis of attaching to the original green space of the road and optimizing the use function,so as to build the rainwater collection and utilization cycle network of South Park Road.Finally,the scientific,effective,ecological and economic design of urban road rainwater landscape in sponge city is realized on the basis of accurate data simulation.