【正文】 .................15 測量依據(jù) ...............................................................................................................15 軸線及高程測量控制網(wǎng)的平面布置 .........................................................................15 平面控制方法 ........................................................................................................16 高程控制 ...............................................................................................................16 測量器具一覽表 ....................................................................................................17 第二節(jié) 溝槽基坑圍護工程 ............................................................................................17 工程概述 ..............................................................................................................17 2 溝槽圍護 ..............................................................................................................17 鋼板樁支護 ...........................................................................................................17 SMW 工法施工 ......................................................................................................19 壓密注漿施 工 .......................................................................................................21 第三節(jié) 輕型井點降水 ...................................................................................................22 工程概述 ...............................................................................................................22 輕型井點工藝流程 .................................................................................................22 輕型井點布置 ........................................................................................................22 輕型井點施工要點 .................................................................................................22 第四節(jié) 溝槽開挖 ..........................................................................................................23 機械布置 ..............................................................................................................23 施工要點 ..............................................................................................................24 鋼板樁支護段開挖 ................................................................................................24 第 五節(jié) PCCP管道施工 ................................................................................................24 管材質量要求 ................................................................................................25 管施工方法 ...................................................................................................26 第六節(jié) 鋼管施工 ..........................................................................................................29 鋼材質量要求 ........................................................................................................29 鋼管施工方法 ........................................................................................................29 施工主要質量標準和技術要求 ...............................................................................30 鋼管安裝 ...............................................................................................................32 管道防腐要求 ........................................................................................................32 溝槽覆土 ...............................................................................................................33 第七節(jié) 倒虹管施工 ......................................................................................................33 工程概述 ..............................................................................................................33 施工工藝 ...............................................................................................................33 施工總則 ..............................................................................................................33 施工要點 ..............................................................................................................34 第八節(jié) 頂管工程 ..........................................................................................................34 工程概述 ..............................................................................................................34 沉井工程概況 ........................................................................................................35 沉井施工 ...............................................................................................................35 洞口壓密注漿施工 ................................................................................................40 頂管施工 ..............................................................................................................40 第九節(jié) 管橋施工 ..........................................................................................................46 工程概述 ..............................................................................................................46 施工流程 ..............................................................................................................46 灌注樁施工 ...........................................................................................................46 支墩施工 ...............................................................................................................48 3 鋼管的拼裝與架設 .................................................................................................49 第十節(jié) 排水閥井、流量儀井、透氣閥井等附屬工程 .....................................................50 排水閥井、流量儀井等附屬工程施工 ...................................................................50 第十一節(jié) 管道試驗及消毒 ............................................................................................51 性能試驗 ............................................................................................