船闸引航道隔流墙的布置

引航道布置是船闸总体设计的重要内容，也是船闸设计成败的关键。在天然河流上建设船闸，在船闸与泄水建筑物或电站之间通常设置隔流墙，将引航道水域与通过枢纽的水流隔开，形成引航道内有利的水流条件。从船闸引航道隔流墙布置的角度，强调对于不同的口门区位置，应采用不同的通航水流条件判别标准，并分析隔流墙的长度和位置在掩护引航道、抑制横流等方面的作用。最后介绍石虎塘枢纽船闸布置的案例。

Layout of guard wall of locks

The design of approach channel has great influence on general layout of locks.When a lock is constructed in rivers,the guard wall is arranged normally between the lock and weir or power house to guard the approach channel from the river flow,thus the favorable condition of water flow is formed.From the angle of guard wall layout,it is emphasized that the different criterions of the navigation flow conditions should be used for different locations of the entrance.The effects of covering the approach channel and reducing the crosscurrent are showed through analyzing the length and location of the guard wall.Then the different alternatives of layout of Shihutang lock are introduced.