Practice of Improving and Managing Urban River Drainage and Disaster Prevention
Taking the Dayan Lake Disaster Prevention and Reduction Project(Phase I)in Qingyuan City as the research background,combined with the current situation of incomplete canal system and insufficient drainage capacity in flood prone areas,this article proposes engineering measures for excavating new channels and clearing existing channels,constructing a"three vertical and one horizontal"canal system with Xinkai River,Central Waterway,and Qinglanhai as the"vertical"and Huangjin Waterway as the"horizontal".The slope protection structure adopts ecological gentle slope type,stone throwing foot protection and concrete prefabricated block slope protection type.Governance takes into account both the construction of greenways and sponge cities.By setting up waterfront trails and ecological landscape facilities on both sides of the channel,and installing intelligent diversion wells in local river sections to achieve rainwater and sewage diversion.
river managementsponge cityecological slope protectiongreenway construction