沙牌碾压混凝土拱坝坝体分缝形式的结构特性研究

在碾压混凝土拱坝设计中，选择合理的坝体分缝结构与分缝位置是有效地控制坝面开裂范围和保证拱坝整体稳定性的关键技术问题。文章结合沙牌水电站碾压混凝土拱坝的实际，运用有限元数值分析方法对拱坝不同分缝结构的坝体应力及缝端开裂特征作了多方案研究，在比较了各分缝方案结构特性差异的基础上，对该坝体的分缝结构和分缝部位提出了建议。

Research on Structural Features of Dam Body Crevice Form of Shapai Roller Compaction Concrete Dam

In the design of roller compaction concreter arch dam,selecting rational crevice structure and position is the key technology of effectively controlling crack rage of dam face and ensuring whole stability of the arch dam.Combining with the practice of the roller compaction concreter arch dam of Shapai Hydropower Station,the paper has researched stress of the dam and cracking features at the crevice end of different crevice structures of the arch dam in many schemes using finite numerical analysis method.On the base of comparing each scheme of crevice position,the writer present suggestion about crevice structure and position of the dam body.