Based On The Evolution Of Water Systems,Sponge Transformation Of Guangzhou Historical Community Design Research ——Taking Liwan Changhua Street As An Example

With the transformation of various large-scale demolition and large-scale construction in modernization construction,as well as the influence of extreme climate and other factors brought about by the sudden change of the global environment,many cities in my country have caused problems such as urban waterlogging and rainwater accumulation to varying degrees.While facing the contemporary rainwater problem,the water system network can play an extremely important role in solving the problem of urban waterlogging.In ancient times,in the process of production and life,the ancestors had to use the natural terrain to adapt to the series of problems caused by floods without modern drainage facilities,so the wisdom of water management with unique local characteristics came into being.Fushougou in Ganzhou,Jiangxi,Liumai Canal in Guangzhou,Daguan River,Xiguanyong,etc.,all played an important role in dredging the waterlogging of the ancient city in the old city,as if the blood was unimpeded.However,after the modernization construction,many water system heritages have gradually sank in the long river of history.It is of great significance to revive the sponge effect of the ancient river channels in the old city combined with the contemporary sponge design methods.Guangzhou City,as the center of Lingnan water town culture and the representative of Shanshui City,has been blessed with unique water system design since its establishment more than 2,000 years ago.The research on the traditional water system landscape network in the historical urban area of ??Guangzhou will help to excavate and sort out its regional construction characteristics,and provide a layout basis for the overall sponge transformation strategy.guiding significance.The object of this study is defined as the historical city of Guangzhou,and Changhua Street in Liwan District is used as an empirical study.First of all,it will focus on the problems of rain and flood caused by the aging of drainage facilities and the natural low-lying terrain and the lack of existing water system heritage culture.How to effectively reduce the local rainwater runoff and the hidden dangers of water accumulation in the city by constructing a water system heritage pattern to carry out the sponge transformation of the old landscape in the old city,and comprehensively optimize the water environment in the area is the purpose of this research.Focusing on this idea,firstly,it expounds the relevant theoretical practice at home and abroad as well as the status of Guangzhou urban water system landscape heritage,and then analyzes the rain and flood problems in historical urban areas,and constructs a water culture and water security pattern.Furthermore,combined with the rainwater system renovation practice cases,the relevant design methods are summarized,and the corresponding renovation areas are distributed in the pattern.Finally,the sponge renovation design is carried out and the SWMM model is used to verify it.