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坡面掛網噴漿技術要求: 1. 噴射砼支護工程施工的特點是邊開挖邊支護,分層開挖,分層支護, 開挖完成既支護完成,開挖過程和噴射砼支護施工形式成流水作業。 2. 施工工藝流程 定位放線 基坑開挖 修整邊坡 鋼筋錨入 埋設噴射 砼厚度控制標志、第一層砼噴射 鋼筋綁扎 第二層砼噴射進入下 層土方開挖、噴射砼施工 ① 放線定位,周邊基坑分層開挖, 修整邊坡(平整度允許偏差± 20mm); ② 鋼筋制作,定位、打入; ③ 鋪設鋼板網及定位筋(鋼筋保護層厚度≥ 20mm,鋼筋網片鋪設時每 邊的搭接長度為 30d); ④ 施工噴射砼(面層 80mm厚,分兩次噴射,每遍 40mm厚,細石砼的等 級為C20); ⑤ 進入下一層土方開挖; 3. 施工要求及技術措施 1 )先檢查邊坡的穩定性,再清除邊坡中的松土、危土。 2)在機械開挖后應輔以修整坡面使坡面平整,清除坡面上的塵土。 3 )施
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目 錄 1.干砌片石坡面防護 ·······················································1 2.骨架護坡 ·····························································1 3.漿砌片石護坡、護墻 ···················································1 4.種草籽防護 ··························································2 4.1 鋪草皮、種草籽 ···················································2 4.2 鋪草皮 ·············································
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