Abstract: Gravity dam combined with powerhouse at the dam toe is adopted by a hydropower project and its construction of right bank dam and powerhouse is under the protection of cofferdam phase Ⅱ. The concrete was planned to be placed by cable cranes. However, to reduce the dependence on the cable cranes, the construction scheme is optimized during the implementation process and two concrete conveying lines are arranged for dam block 10~15. After optimization, the construction interference is reduced greatly and the goal of dam retaining has been realized.

Key words: right bank of the dam, concrete construction, concrete conveying line, concrete chute

摘要： 某水电站枢纽布置格局为“重力坝+坝后式厂房”，右岸大坝及厂房在二期围堰围护下施工。大坝混凝土原计划采用缆机施工，为减少对缆机的依赖，实施过程中对施工方案进行了优化，布置了2条供料线用于10~15号坝段混凝土浇筑。方案优化后，大大降低了施工干扰，确保了大坝挡水目标的实现。

关键词: 右岸大坝, 混凝土施工, 供料线, 溜筒