1 目 录 1. 工程概述 ............................................................... 1 2. 编制依据 ............................................................... 5 3. 施工布置 ............................................................... 7 4. 压力钢管制作准备和材料要求 ............................................. 8 4.1 施工准备 .......................................................... 8 4.2 材料要求 ......................................................... 10 5. 压力钢管制作工艺措施 .................................................. 12 5.1 钢板表面处理 ..................................................... 13 5.2 钢板排料、划线、切割和坡口加工 ................................... 14 5.3 钢板卷制 ......................................................... 15 5.4 组圆、焊接、调圆 ................................................. 16 5.5 岔管制造 ......................................................... 17 5.6 装焊加劲环、支腿、吊耳等附件 ..................................... 17 5.7 钢管摞节 ......................................................... 18 5.8 钢管焊接 ......................................................... 18 5.9 焊缝检验 ......................................................... 23 6. 压力钢管安装 .......................................................... 24 6.1 安装工艺流程 ..................................................... 24 6.2 安装需具备的条件 ................................................. 24 6.3 安装程序 ......................................................... 25 6.4 安装准备 ......................................................... 25 6.5 压力钢管的施工运输及吊装 ......................................... 25 6.6 岔管段安装 ....................................................... 28 6.7 压力钢管现场焊接施工 ............................................. 28 6.8 冬雨季施工措施 ................................................... 30 7. 压力管道...
