Planning Countermeasures Of Nanchang City Flood Control And Drainage Under The Background Of The Sponge City

In recent years, global climate turns to be abnormal and heavy rain happens frequently, causing severe floods and water loggings in many domestic cities, which not only causes great loss to city dwellers, but also poses a certain threat to the safety of the city. There are many reasons that caused the increasing of city flood, such as the intense rainfall, the promoting urbanization effect, irrational layout, Hysteresis of the flood control and drainage planning measures, urban runoff increases caused by opaque surface increasing, severe damage of urban water system and vegetations, etc.,However, with the concept promotion of sponge city construction, people have find a new city developing mode. Currently it has been a new way of thinking to make both the flood risk prevention and rain flood resources utilization.By researching of current related literatures and practices, evolution trend of city flood control and drainage are examined, and the new concept of urban flood controlling and drainage planning are proposed, and then city planning and construction of flood control and drainage measures are formulated under the guidance of the sponge city.The empirical research on flood control and drainage planning of Nanchang has been carried out based on the strategy, which is of important practical significance to improving the flood control and drainage capability of the city. The research also provides importance advice and reference to flood control and drainage of other kinds of urban planning.(1) To summarize the practical experience, construction and practice of sponge city both at home and abroad.(2) Relationship between the urban flood control and drainage planning and sponge city construction, and the concept of city flood control and drainage plan under the new situation.(3)Puts forward city flood control and drainage planning principles under the background of sponge city, and brings out city flood control and drainage planning countermeasures based on local conditions, flood control and drainage engineering measures detention facilities and adjust measures.(4) By the guidance of the construction countermeasures about urban flood control and drainage planning proposed by the paper, practical research has been taken in Nanchang. After analyzing the causes and characteristics of Nanchang city flood according to the actual circumstance of urban development, the implementation of nanchang city flood control and drainage planning countermeasures are studied.The proposition and development of Sponge city construction provides a new idea for the urban flood control and drainage planning, which we should timely study and promote, to guide for urban flood control and drainage planning, and also to provide persuasive theoretical support and policy guarantee to the development of new type livable city in China.