Abstract: The navigation lock at downstream hydro-junction of Shuikou hydropower station is designed as one-line ship lock. Its capacity should go matching with the capacity of Shuikou ship lock. According to the river bed geology and condition, the lengthening scheme was adopted for layout. Further, dispersed filling and emptying system on the side wall of gallery was applied. The plane layout of approach channel was asymmetercal.

摘要： 水口坝下枢纽工程航运过坝采用一线通航船闸。工程建成后，要求新建船闸的通航能力与上游水口水电站双线通航建筑物的通航能力相匹配。根据坝址选定位置的河床地形条件及布置条件比选，船闸总体布置采用加长方案，船闸输水系统型式采用闸墙长廊道侧支孔分散输水系统，上下游引航道平面布置采用不对称型式。