Study On Sponge Transformation Of Yunlong Park In Xuzhou

The rapid development of urbanization has brought many urban problems.The most prominent problem of them is urban rainwater.Flood disasters and rainwater accumulation have caused the changes of urban natural hydrological cycle,and urban development is facing huge environmental pressure.The concept of "sponge city" was put forward to solve the rainwater problem which is faced in Chinese cities.Under the background of ecological civilization,the construction of sponge city gradually tends to shift in pilot areas,the green space in park and other small areas.More and more cities have transformed the old park to green sponge spaces.Taking this as an opportunity,the paper studies the park green land from the perspective of sponge city,and explore the methods and implementary ways.Firstly,the paper tells the concepts of sponge green space of parks,SWMM model and relevant research progress at home and abroad.It also tells the necessity and importance of sponge green space of parks’ construction,and summarizes the technology and evaluation methods of park sponge transformation.And it provides reference experience for parks’ transformation strategys.Secondly,this paper takes Yunlong Park in Xuzhou as the research object.Through the analysis and research on the natural situation and the construction practice of sponge city in Xuzhou,this paper explains the feasibility of integrating the concept of sponge city into the construction and transformation of parks’ green space in Xuzhou.From the perspective of sponge City,this paper systematically analyzes the current situation and problems of Yunlong Park,and defines the necessity of sponge transformation of Yunlong park.Then,it focuses on the in-depth research on the strategies and technical measures of sponge transformation of Yunlong Park.According to the serious problems of hydrops and soil erosion in the park,it propose the sponge transformation strategy of Yunlong Park.And studies the sponge transformation of the site on the basis of ensuring the main function of the park.From overall layout optimization to zoning reconstruction and reasonable layout of the site,it can control stormwater runoff in different zones.A complete sponge system in the park is constructed by systematical sponge facilities,so as to divide the catchment area and carry out zoning management of rainwater runoff.And it can strengthen full integration of sponge facilities with roads,green spaces and water systems in the park by using sponge technologies such as infiltration,retention,storage and purification.It will maximize the sponge utility of sponge facilities.In order to scientifically and reasonably solve the problem of site rainwater runoff,SWMM model software is used to simulate and evaluate the transformation scheme.This paper clarifies the operation principle of SWMM model software and summarizes the parameter setting,and model process of software simulation hydrology and hydraulics.Whats more,it also generalizes the research area.Finally,according to the guidance of transformation strategy,the sponge transformation of Yunlong park is studied,and the systematic and reasonable sponge transformation of the site is carried out.According to the transformation scheme,the SWMM sponge model is established and quantitatively analyzed,the sponge effect after the park sponge transformation is verified and evaluated,and the rainwater runoff regulation effect is displayed by using visual data.Yunlong Park have become a sponge green space with the functions of sponge benefits,recreation and science education.