The Study On Sponge Design And Effect Evaluation Of Urban Park

With the continuous development of economy,China’s urbanization rate continues to rise.There are many disadvantages hidden behind the rapid urbanization,among which the treatment of rainwater resources can not be ignored.After 2013,the concept of sponge city has been rapidly promoted in China,and many scholars and experts are committed to this research.However,the concept of sponge city has a wide range,and its application in China is mainly based on local urban planning,and the design system of sponge park is not complete.In recent years,frequent urban waterlogging has caused certain psychological and physiological harm to urban residents.In order to solve this phenomenon,the concept of sponge city should be systematically planned according to its nature,level and local conditions.In this paper,the sponge design and effect evaluation of an urban park in Hefei are carried out.The sponge city theory is applied to the park with urban characteristics.Combined with the site background,the sponge scheme is designed from the whole to the part,so as to provide ideas and methods for the construction of sponge Park in Hefei.Firstly,it combs the research and application of sponge park at home and abroad from two aspects of theory and policy,makes a comparative analysis of relevant cases,and summarizes the advantages and disadvantages of the scheme design of sponge park.Secondly,from the perspective of the feasibility of sponge park design,an urban park in Hefei is selected as the research area.Through the investigation and analysis of the current situation of the research area,combined with the summarized design points,the corresponding sponge design framework is formulated.The sponge measures are analyzed from the aspects of rainwater infiltration,storage and regulation,transmission,sewage interception and purification.The sponge design scheme of the park is carried out layer by layer by preliminary analysis,overall layout and special design.Finally,based on the theory of sponge Park,through the comparison and summary of comprehensive evaluation methods,the analytic hierarchy process is selected to evaluate the sponge effect of the research area.The analytic hierarchy process is used to analyze the sponge index quantitatively and qualitatively,and the comprehensive score of the sponge of the urban park is calculated to verify the feasibility of the study.