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1 沙颍河防御超标准洪水分洪措施的可行性1.1 不同频率下澧河洪水的峰、量状况1.1.1 澧河5年一遇洪水,何口站5年一遇洪峰流量2204m~3/s,按照省定方案,泥河洼罗湾进洪闸以下下泄1900m~3/s控制,开启罗湾分洪闸将超过部分向泥河洼滞洪区分洪。从澧河现有河道堤防状况及泥河洼蓄洪能力来看,基本
1 Feasibility of Shaying River Flood Prevention Measures Exceeding Standards Flooding 1.1 Peak and Flood Conditions of Baotou River at Different Frequencies 1.1.1 Floods occurred in 5 years in Bahe River once every 5 years Peak flood flow of 2204m ~ 3 / s , In accordance with the provincial plan, the Niuwan Bay flood gate below the release of 1900m ~ 3 / s control, opening up more than part of Bay Bay flood diversion floods to the flood diversion area. From the existing river embankment situation and the Nihe flood storage capacity of flood point of view, the basic