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葠窝水库位于太子河干流上,为大Ⅱ型水利枢纽工程。自1974年竣工以来,经过20多年的运行,溢流坝堰面砼冻融破坏严重,决定对溢流面进行加固处理。具体技术要求:堰面砼凿除从▽62.4～▽84.8m,其中▽81.0m以上为浅层砼凿除,平均凿深50mm。再用SPC聚合物砂浆进行表面抹面处理;▽81.0m以下为深层砼凿除,平均凿深500mm,切掉原钢筋。重新下锚筋及新铺钢筋网后再用滑模进行堰面砼浇筑,要求砼强度C30、F300、W6。
Shenwo reservoir is located in the mainstream of Prince Edward River, for large Ⅱ type water control project. Since its completion in 1974, after more than 20 years of operation, the weir concrete surface of the overflow dam has been seriously damaged by freeze-thaw. It is decided to reinforce the overflow surface. Specific technical requirements: Weir concrete chisel from ▽ 62.4 ~ ▽ 84.8m, of which ▽ 81.0m above for the shallow concrete chiseling, the average chisel depth 50mm. Then SPC polymer mortar surface plaster treatment; ▽ 81.0m below the deep concrete chisel exclusion, the average depth of cut 500mm, cut off the original steel. Re-anchor bar and new shop after the steel mesh with a sliding surface weir concrete pouring, requiring concrete strength C30, F300, W6.