岳城水库溢洪道混凝土破坏剥蚀原因分析及处理

Causes analysis and treatment of the concreteeroding destruction of Yuecheng Reservoir′s spillway

岳城水库溢洪道泄槽面板混凝土表层，由于冻融破坏和高水流冲刷，发生大面积剥蚀破坏，通过原因分析和方案论证，采用ＳＰＣ聚合物水泥砂浆对表层剥落面板进行薄层修补处理，采用ＰＴ防渗胶泥对部分破坏严重的伸缩缝进行嵌填，取得良好的维修效果。

The concrete surface layer of Yuecheng Reservoir spillway channel deck plate has been eroded in large areas because of freezethaw action and speedy water flow scouring. Through couses analysis and alternatives demonstration, SPC polymetic cement mortar has been taken to patch the eroded surface layer of the deck plate, and PT impervious sticky cement to fill the heavily destroyed parts of the exponsion and contraction joints, and a good result has been gained.