台阶状混凝土垫层在面板堆石坝坝顶溢洪道中的运用研究  

Study and Application of Step-shaped Concrete Cushion in Crest Spillway of Concrete Face Rockfill Dam

作　　者：曹骏 

机构地区：[1]贵州省水利水电勘测设计研究院,贵州贵阳550002

出　　处：《水力发电》2013年第4期37-39,共3页Water Power

摘　　要：混凝土面板堆石坝坝顶溢洪道坝坡稳定是溢洪道安全运行的前提,工程中主要通过在泄洪底板上设置水平锚拉结构解决抗滑稳定问题,但存在一些不足。白河沟面板堆石坝坝顶溢洪道在实践中创造性地采用了台阶状混凝土垫层,避免了溢洪道斜坡滑动状态,成功解决了水平锚拉结构在坝顶溢洪道运用中存在的问题。结构分析及有限元计算结果表明,坝顶溢洪道结构变形和应力值均较小,抗滑稳定满足要求。The slope stability of crest spillway in concrete face rockfill dam is the premise of the safe operation of spillway. In practice, the sliding stability of this spillway slope is primarily guaranteed by installing level anchoring structures on the floor, but there are some shortcomings. The step-shaped concrete cushion is creatively used in the crest spillway of Baihegou CFRD, which can eliminate the sliding of spillway slope and successfully solve the problem of level anchoring structure. The structural analysis and finite element calculation results show that the structure deformation and stresses of crest spillway are smaller and meet the requirements of sliding stability.

关 键 词：台阶状混凝土垫层 坝顶溢洪道 坝坡稳定 白河沟面板堆石坝 

分 类 号：TV651.1[水利工程—水利水电工程]