目 录 一、工程及管线概况 ..................................................................................... 1 二、管线施工方案 ......................................................................................... 1 2 .1 雨水、污水管线迁改施工方案 ........................................................ 1 2 .2 新旧雨、污水管连接施工 ................................................................. 2 2 .3 施工步骤 ............................................................................................. 3 2 .3 .1 放样及沟槽开挖： .................................................................... 4 2 .3 .2 管道基础 .................................................................................... 5 2 .3 .3 管道安装 .................................................................................... 5 2 .3 .4 管道连接 .................................................................................... 5 2 .3 .5 井室砌筑 .................................................................................... 6 2 .3 .6 管道与检查井连接 .................................................................... 6 2 .3 .7 管道回填 .................................................................................... 7 三、施工时间计划 ......................................................................................... 8 四、质量保证措施 ......................................................................................... 8 五、工期保证措施 ......................................................................................... 8 6 、保证施工安全的主要措施 ....................................................................... 9 7 、环保措施 ................................................................................................. 1 0 8 、文明措施 ................................................................................................. 1 0 1 一、工程及管线概...
