Abstract: Because of sand mining, the water level of downstream Shuikou hydropower station descended quickly which exerted bad influence on operation of ship lock. This paper analysed the change of downstream water level and river bed elevation in aspects such as downstreamwater level, river water surface profile, cross section characteristics and so on.

摘要： 近年来, 随着闽江干流下游河道采沙的加剧, 水口水电站坝下水位快速下降, 严重影响了水口船闸的正常运行。本文从水口水电站坝下水位、河道水面线、断面特性变化等几个方面, 分析了水口水电站下游河道水位、河底高程总体变化情况及特点。