Hydrodynamic coupling model-based evaluation on urban waterlogging control scheme
In order to solve the waterlogging problem of Longkungou watershed in Haikou City of Hainan province,the lower reach of Longkungou will be excavted by digging in the near future,the comprehensive treatment measures will be adopted such as drainage zoning optimization in the long term.The effectiveness of the future renovation project can be evaluated based on coupling model of hydrodynamic model with InfoWorks ICM.The results shows that:①after the recent implementation of the river reconstruction project,the water level of the river will decrease,but the mitigation effect on surface waterlogging is limited;②after the implementation of the long-term watershed planning project,the water level will be obviously reduced and the surface waterlogging situation will be obviously mitigated,and the expected effect can be achieved.The discharge cross section can be increasing by deepening the river section,so that the river water level can be effectively reduced and the river flow capacity can be effectively increased,but it cannot have a significant alleviating effect on surface waterlogging.By optimizing drainage zoning and other comprehensive measures to reduce the catchment area of the river,the river water level can be significantly lowered and also the surface waterlogging can be obviously improved.
InfoWorks ICMwater surface profileurban waterlogginghydrodynamic coupling modelHaikou City
万方数据
维普
