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岩滩水电站溢流坝表孔工作门为弧形闸门,最大挡水面积为15×22.49m~2,闸墩承受的单侧支铰门推力为23160kN。闸墩采用预应力混凝土支承结构,设计上有如下特点:
The worksite of the spillway dam of Yantan Hydropower Station is an arc gate with a maximum water retaining area of 15 × 22.49m ~ 2. The thrust force of the unilateral branch hinges subjected to the pier is 23160kN. Pier using prestressed concrete support structure, the design has the following characteristics: