| In an era of rapid development like this,rapid urbanization has resulted in the rapid loss of rainwater resources,making the problem of rainwater resources use an increasingly serious ecological dilemma,and making people and nature increasingly serious.When Anshan became the third batch of urban double repair After the pilot,the construction of the sponge city in the Anshan Zhoudashan area became particularly meaningful.Based on the current topography and hydrological conditions of Anshan Normal University and its surrounding areas,this thesis studies the use of rainwater resources and the layout of low-impact development facilities in Anshan Normal University and its surrounding areas for planning and research,laying a foundation for the construction of sponge cities.By summarizing and sorting out the case study methods of sponge city construction,sponge campus construction at home and abroad,and the application of low-impact development facilities,the thesis determines that low-impact development theory,ecological city theory,green infrastructure theory,and flexible planning The theoretical basis is supplemented by theories.Geographic information system(ARCGIS)and storm flood management model(SWMM)are the main technical means,and hydrological condition analysis and storm flood management model are the main research methods.First of all,by analyzing the basic conditions of the Anshan Zhoudashan area,we understand that the Anshan Zhoudashan area will cause difficulties in rainwater collection within the planning scope due to the mountain height environment of Zhoudashan Park and Yoyo Park;The landscape resource development potential of Zhou Dashan Park and Yoyo Park is huge,which makes up for the lack of ecological aspects of northern cities and provides a good opportunity for sponge construction in Zhoushan area of Anshan.Using geographic information system software(ARCGIS)to analyze the elevation,slope,and hydrological analysis from multiple aspects,the natural waterway corridor is derived.Based on the functional space requirements of the Anshan Zhoudashan area,the natural waterway corridor is modified.In order to ensure the management and control of the landscape corridors and the construction of the landscape pattern in the Anshan Zhoudashan area,a solid foundation is established.Secondly,according to the different types of land use properties,the Anshan Zhoudashan Area(Anshan Teachers College)sponge city construction is divided into land use categories:residential land(dormitory area),public management and commercial land(teaching area),Green and road land.According to the guidelines for the construction of sponge cities in the area,various types of land are used to determine the total annual runoff control target for the plot in combination with the construction conditions of various types of land and the risk of flooding.Thirdly,determine many parameters such as the catchment area,hinge point,pipe canal,impervious area ratio,etc.,and divide the management and control unit,so as to establish a storm flood management model(SWMM),and perform rainwater runoff simulation analysis on the Anshan Zhoudashan area.At P = 1a and P = 3a,the calculation of surface runoff and at the time of P = 20 a,the runoff calculation process of the underground pipe network,so as to conduct a multi-level analysis of the storm flood management model,and obtain the results of the water volume at the junction and the drainage channel drainage.Finally,the continuous and rich sponge landscape pattern is constructed by combining the measured storage green space area and the identified watershed sensitive areas.The three landscape corridors,namely the water corridor,industrial corridor,and green belt corridor,are used to control and highlight The unique sponge corridor features of Anshan Zhoudashan area,meanwhile,it guides the landscape facility layout of Anshan Zhoudashan area through the application of full-process measures,full coverage facility layout,and multi-level ecological construction. |
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