密云水库内湖区近1600万m3蓄水得不到及时有效的利用,三号坝存在反向挡水等不利于工程安全运行的问题。从增加可利用水资源量、改善工程运行条件、确保工程安全、水库管理调度统一及水环境保护等角度进行分析,论证拆除三号坝工程的必要性。 Nearly 16 million cubic meters of impoundment in the Miyun Reservoir Neihu District can not be timely and effectively utilized, and the third retaining dam has reverse water blocking problems that are not conducive to the safe operation of the project. From the perspective of increasing the amount of available water resources, improving the operating conditions of the project, ensuring project safety, unification of reservoir management and protection of water environment, the necessity of demolition of No.3 dam project is demonstrated.