洪泽湖滞洪区适宜灌排工程模式研究OA

In response to the problems of easy water-induced damage of channels,easy collapse and siltation of drainage ditches,and insufficient drainage capacity in existing irrigation and drainage projects in the region,combined with the characteristics of flood detention area engineering,a comprehensive comparison was made among three irrigation and drainage project modes:"open irrigation,open drainage,and open subsurface drainage","concealed irrigation,open drainage,and open subsurface drainage",and"concealed irrigation,concealed subsurface drainage,and open drainage".The results show that the"concealed irrigation,concealed subsurface drainage,and open drainage"mode has significant advantages in saving land,reducing water loss,enhancing subsurface drainage capacity,and improving engineering adaptability.It is a more suitable irrigation and drainage engineering mode for the Hongze Lake flood detention area.On this basis,typical engineering designs for low-pressure pipeline irrigation and concealed drainage systems were completed,and the main design parameters under different irrigation areas,water source height differences,and soil conditions were proposed.The research results aim to provide reference for the optimization and planning and construction of irrigation and drainage engineering models.