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一、枢纽泄洪布置概述万安水利枢纽位于赣江中游万安县城以上约2公里处。水库库容不大,当库水位为103.6米时,库容仅22.16亿立米,可供调蓄洪水的库容很小。千年一遇设计洪水时,要求枢纽下泄能力为27800秒立米,与入库洪水流量相等。水库的特性决定了枢纽要有很长的溢流前缘,同时,泄洪建筑物布置要能灵活地满足各种频率洪水的泄洪要求,以发挥工程的效益。
First, the layout of flood discharge hub Overview Wanan Water Control Project is located in the middle reaches of Wanan County, Ganjiang River about 2 kilometers above the city. Reservoir capacity is not large, when the reservoir water level is 103.6 meters, the storage capacity of only 2.166 billion cubic meters, storage capacity for flood control is very small. In the event of a design flood in the millennium, the capacity of the hub to discharge is required to be 27,800 seconds of cubic meters, equivalent to the inflow flood rate. The characteristics of the reservoir determine the hub has a long overflow front, at the same time, the layout of flood discharge buildings should be able to flexibly meet the flood discharge requirements of various frequency floods in order to bring the project benefits.