南水北调中线一期工程总干渠 xx—xx 北段(xx 直管项目)xx 段施工第一标砌石工程施工方案编 制: 审 核: 批 准: xxxx 集团有限公司南水北调中线 xx 段Ⅰ标项目经理部2010 年 10 月 10 日目录1 工程概况..................................................................................................................................................12 施工准备..................................................................................................................................................13 砌石施工方法..........................................................................................................................................23.1 削坡..............................................................................................................................................23.1.1机械粗削..............................................................................................................................23.1.2人工精削..............................................................................................................................23.2 土工布铺设..................................................................................................................................23.2.1铺设......................................................................................................................................23.2.2 土工布连接......................................................................................................................23.3 砂石垫层铺设..............................................................................................................................23.3.1铺料......................................................................................................................................23.3.2压实......................................................................................................................................23.4 干砌石...............................