Renovation Of Rainwater Garden In Shijiazhuang City Based On SWMM Model

In recent years,China is vigorously promoting the construction of sponge cities.The construction of sponge cities has become one of the main measures to mitigate urban rain and flood disasters.As an important unit of the sponge city-rainwater garden,it undertakes the important tasks of rainwater flood control,ecological optimization and rainwater purification.This article discusses the reconstruction of the rainwater garden of Zhaotuo Park's green space based on the simulation of the SWMM model.The purpose is to achieve the effects of mitigating urban waterlogging,replenishing groundwater resources,and providing green water for the follow-up Shijiazhuang through the design and transformation of Zhaotuo Park.The city's rainwater garden construction provides reference and basis.First of all,this article studies the domestic and foreign rain garden and SWMM model related literature,and introduces the research content,methods and innovations of this article.It also introduces the relevant theories and design points of the rain garden,and introduces the related content and simulation process of the SWMM model.Secondly,in order to verify the reconstruction potential of the rainwater garden in the second ring road of Shijiazhuang City,based on the needs of the SWMM model(storm and flood management model),the area of ??the second ring road in Shijiazhuang City was investigated to collect the topographic status of existing parks,distribution of urban pipelines,and soil geology The information is summarized and summarized to extract relevant parameters.And summarize the current problems of rainwater utilization in Shijiazhuang.Third,take Zhaotuo Park in Shijiazhuang City as an example to carry out specific research.The SWMM model is used to establish the current rain and flood model of Zhaotuo Park,to simulate the current situation of rain and flood management,and to analyze the current storm water management problems in the park.Finally,the rainwater garden reconstruction plan for Zhaotuo Park in Shijiazhuang was proposed,and the simulation comparison before and after the reconstruction was performed through the SWMM model.The advantages anddisadvantages were analyzed and suggestions were made to provide a reference for the concrete construction of the rainwater garden in the construction of the sponge city in Shijiazhuang.