【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。更多还原

【Abstract】 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.更多还原