The Feasibility Research Of Flood Diversion Gate Down In West Qilihai

On1992, West Qilihai was identified as Yongding New River temporarydetention basin, seven Caspian Flood flood diversion gate in28+192position. On thebasis of" Tianjin city design flood, flood control and flood detention zone", theapplication principle: when the Yongding New River28+192section of water levelof5.84meters, seven West Caspian temporary flood diversion area to flooddiversion, Ninghe county began removing the internal resistance refers to the waterisolation Shanian area.Yongding New River seven Caspian as temporary detention basin and nopractical uses, along with the development of social economy, in the28+192flooddiversion gate near the floodway has many factories and enterprises, and for theproduction of vegetable big canopy, the way of life and the vibration shanian. Whilethese enterprises, industrial and agricultural infrastructure, has seriously blockedover the spillway flood discharge capacity. At the same time, many enterprises andfactory facilities, is difficult in a short period of time effective cleaning and removal,and requires a large amount of funds for the placement and movement, can berecovered its original design flood function.In2010Ninghe flood control office suggested that the flood diversion gatedown to32+000. Flood diversion gate position changes, bound to Yongding NewRiver to the seven Caspian flood diversion effect, and to the whole of YongdingNew River flood prevention system to produce certain effect. This thesis will use thenetwork model and flood detention basin evolution model, analysis of flooddiversion gate seven Caspian position down, on the Yongding New River flooddiversion effect, on different flood diversion position under the scheme, sevenCaspian flood economic loss evaluation and analysis, as the seven West Caspianflood diversion gate down scheme provides feasibility analysis, so as to Yongding,New River to provide reference for flood control dispatching work.