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坡面挂网喷浆技术要求

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坡面挂网喷浆技术要求: 1. 喷射砼支护工程施工的特点是边开挖边支护,分层开挖,分层支护, 开挖完成既支护完成,开挖过程和喷射砼支护施工形式成流水作业。 2. 施工工艺流程 定位放线 基坑开挖 修整边坡 钢筋锚入 埋设喷射 砼厚度控制标志、第一层砼喷射 钢筋绑扎 第二层砼喷射进入下 层土方开挖、喷射砼施工 ① 放线定位,周边基坑分层开挖, 修整边坡(平整度允许偏差± 20mm); ② 钢筋制作,定位、打入; ③ 铺设钢板网及定位筋(钢筋保护层厚度≥ 20mm,钢筋网片铺设时每 边的搭接长度为 30d); ④ 施工喷射砼(面层 80mm厚,分两次喷射,每遍 40mm厚,细石砼的等 级为C20); ⑤ 进入下一层土方开挖; 3. 施工要求及技术措施 1 )先检查边坡的稳定性,再清除边坡中的松土、危土。 2)在机械开挖后应辅以修整坡面使坡面平整,清除坡面上的尘土。 3 )施

路基坡面防护设施与施工

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目 录 1.干砌片石坡面防护 ·······················································1 2.骨架护坡 ·····························································1 3.浆砌片石护坡、护墙 ···················································1 4.种草籽防护 ··························································2 4.1 铺草皮、种草籽 ···················································2 4.2 铺草皮 ·············································

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路基挂网喷浆坡面防护
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