Discussion on key technology of flood planning system in plain river network area
Starting from the difficult issues of flood control system coordination,drainage connection,gate pump scale de-sign,and river network water level regulation,this article explores the key technologies for constructing a"flood planning"system.The article proposes to systematically implement urban flood control and drainage,realize joint prevention and con-trol as well as joint drainage and coordination based on the watershed scale.It also focuses on the coordination of the inten-sity and process of rain pattern design to achieve the balance between drainage and waterlogging,and comprehensively con-siders the temporal updates of the ground,pipeline network,engineering system,and various spatial elements to construct a spatio-temporal coupled runoff model,and establishes a water level regulation mechanism with zoning,unified use,and dynamic updates to refine design scale and application mode of the gate pump group.This article takes the construction of the flood control and waterlogging system in Pinghu City,downstream of the eastern plain of Hangzhou-Jiaxing-Huzhou,as an example for ergineering application,which is of great significance for improving the flood prevention capability of the plain river network area.
plain river network areaflood planningjoint drainage and coordinationspatio-temporal couplingwater level regulation
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