永定河河口泥沙淤积形成的拦门沙坎,把官厅水库一分为二,水位较低时,妫水河库区的水无法供出。对疏挖的连通渠运行4年后再次淤堵、给水库带来的影响进行论述,并对此情况下水库供水能力进行预测分析。 Yongding estuary sediment formation of the barren sand ridge, the Guanting Reservoir is divided into two, the water level is low, the Huangshuihe reservoir water can not be provided. After dredging the connecting channel running for 4 years, it will again clog the reservoir and discuss the impact it has on the reservoir. The water supply capacity of the reservoir will be predicted and analyzed in this case.