Rainwater Management Of Universities In Chengdu Based On Wsud Measures Evaluation And Research

With the rapid development of urbanization,human activities and urban development have destroyed the original urban water culture,resulting in serious urban water problems including the pollution of water environment,the drop of groundwater levels,the scarcity of water resources,and the urban rainstorm.In response to this severe urban water environment,the state began implementing a strategy for the construction of a sponge city.Chengdu also formulated related sponge city construction strategies and tasks,and clarified the important position and role of colleges and universities in the construction of sponge cities.As a leader in social development,colleges and universities in the construction of sponge campuses should,on the basis of satisfying the basic goal of a sponge city,quantify the integration with the campus environment and satisfy many functions such as aesthetics,entertainment and education.This article compares the concept and nature of Australian Water Sensitive Urban Design Concept(WSUD)with other stormwater management systems and traditional rainwater treatment systems,and concludes that the WSUD measures are more in line with the construction of the sponge campus.This paper comprehensively analyzes the current rainfall situation in Chengdu,and uses the V value of the rainwater runoff coefficient corresponding to different underlying surfaces to calculate that the available rainwater potential of Chengdu colleges and universities,which shows that the rainwater resources of colleges and universities in Chengdu City The feasibility of use.According to the category and function of rainwater management measures in Australia Water Sensitive City Design Manual,combined with the campus landscape atmosphere,13 types of rainwater management measures that can be used in colleges and universities are selected and divided into three categories for research.According to the sample points,nine universities and colleges were selected for investigation and study,and conclusions were reached on the utilization status of WSUD measures in colleges and universities.The WSUD measures are divided into engineering and non-engineering measures as the criteria layer for evaluation.The evaluation system of Chengdu University WSUD measures was established using the Analytic Hierarchy Process(AHP).The weights of the indicators were calculated using Yaahp 10.3 software.At the same time,questionnaires and image collection were used to select 4 universities in the top 9 schools for WSUD.The status quo of satisfaction with the measures is to issue questionnaires.The average score of the questionnaire was combined with the index weight to calculate the overall satisfaction score of WSUD measures in the four universities.Analyzing the conclusions of the questionnaire,it can be concluded that the overall satisfaction of Chengdu University of Traditional Chinese Medicine is the highest,but there are still many problems,and the University of Chinese Medicine is now carrying out the renovation of the campus with the idea of??Sponge City,so the author eventually takes Chengdu University of Traditional Chinese Medicine.As a case,Wenjiang Campus uses the WSUD concept as a case,combines its WSUD concept,proposes transformation proposals that are conducive to improving the use of rainwater management measures and landscape effects,and also considers the use of rainwater in the planning and design of campuses for related universities in the future.WSUD measures provide a reference for reference.The paper has obtained the following research results on the research and application of rainwater management measures in colleges and universities in Chengdu:(1)Through data analysis and calculation,the total theoretical rainwater resources in Chengdu universities is 5.44×10~7m~3,and it is estimated that the current amount of rainwater resources that Chengdu University can collect is 3.38×10~7m~3,and the total amount of rainwater resources that can be used each year is 2.08×10~7 m~3.(2)Based on the investigation,summarize and summarize the current status of engineering measures in rainwater management measures in universities and colleges in Chengdu,and analyze their advantages and disadvantages and characteristics.(3)Calculate the index weights by issuing questionnaire statistical data and using Yaahp10.3 software.Calculate the overall satisfaction score of WSUD measures in the four universities by combining the average score of the questionnaire with the index weights.The WSUD satisfaction ratings of the four universities are ranked as follows::Chengdu University of Traditional Chinese Medicine 3.37>Chengdu University of Technology3.28>Sichuan University 3.15>University of Electronic Science and Technology 3.10.(4)Considering that Chengdu University of Traditional Chinese Medicine is responding to the status quo of the“sponge city”being reconstructed,it will be analyzed and summed up based on the survey data,and will be reconstructed based on the WSUD theory to explore suitable rainwater management measures for the school.Subsequent reconstructions provide useful suggestions.As an important part of the construction of the sponge City,the popularization and application of WSUD measures can not only realize the use of rain and flood in the campus,but also combine the rainwater measures with the campus environment to achieve the promotion of the overall environment of the campus.It also serves as the purpose of the science popularization education and provides the basis for the future green campus construction.