River Ecological Management Technologies And Engineering Design

River ecological management is the trend and development direction of river management engineering in the future.On the basis of summarizing the current research status of river ecological management in China and abroad,the ecological management modeand technical measurements for ecological management of river are studied,and the application in Ziyang river ecological management is carried out.(1)According to the characteristics of,the ecological management model and technology are analyzed.The ecological management mode of the river course in the mountain stream is to reserve the plant community of the riparian belt with the beach and deep pool,the design of the compound section,the design of the low embankment and the restoration and reconstruction of the river bank.The ecological management model of the plain river network,which follows the concept of scientific planning and design,the design of the standard of flood control,the design of the ecological embankment and the promotion of the gentle slope in order to protect urban wetlands and build artificial fish nests.The ecological management patterns of urban agglomeration rivers include river pollution control,design of ecological bank margin and vegetation buffer zone,and planning waterfront environment.(2)According to the requirements of the construction of the "sponge city",the ecological management of the ecological bank and the non waterfront area is put forward by combining the requirements of the construction of the "sponge city".The ecological treatment measurements of river bank margin are: vegetation slope protection,three dimensional soil planting and slope protection,grimed grass slope protection,dry stone masonry slope protection,stone cage slope protection,ecological bag slope protection.The ecological treatment techniques for non waterfront areas are: pervious pavement,subsidence green space,grass planting ditch,permeable ponds,vegetation buffer zones and so on.(3)Taking the Ziyang river ecological management in Sanmenxia,Henan as an example,according to the reality of Ziyang River,the river ecological management mode and technical measurements of mountain stream and urban agglomeration are adopted to carry out in the river section design,the hydraulic structures design and the ecological design of the river.The results show that the proposed river ecological management mode and technical measures can provide reference for similar projects.