乌江中下游水电站通航建筑物型式选择

Type selection of navigation structure of Hydropower Stations on middle and lower reaches of Wujiang River

乌江中下游为通航河道，在水电开发后改善了河道的通航条件，对过坝的通航建筑物型式选择将受到高山峡谷、径流量年内分配极不均匀、货运量较大、过坝通航水头较大等因素的影响，在运行方面要求灵活及有利于环境保护等，综合各种因素比较，认为垂直升船机是最佳的通航建筑物型式。

.It is navigable in middle and lower reaches of Wujiang River, since the development of hydropower, the navigation condition will be improved, the type selection of navigation structure is affected by following factors such as high mountain and gorge.inhomogeneous distribution of runoff within a year.large volume of goods transported and large head of over dam navigation, also flexible operation and advantageous enviromnental protection are required, by comparing all kinds of related factors , a vertical ship lifter is considered as the best type of navigation structure.