【正文】 ................................................................................ 1 .............................................................................................................................. 1 .............................................................................................................................. 4 況 .............................................................................................................................. 4 ............................................................................................................ 6 、難點分析 ...................................................................................................................... 6 ....................................................................................................................................... 7 ....................................................................................................................... 7 ....................................................................................................................... 7 ................................................................................................................ 8 ................................................................................................................... 8 ....................................................................................................................... 9 ....................................................................................................................... 9 6基坑開挖方案 ............................................................................................................................... 10 .............................................................................................................. 10 ............................................................................................................................ 12 基坑開挖注意事項 ............................................................................................................. 15 7網(wǎng)噴混凝土施工 ............................................................................................................................ 16 ..................................................................................................................... 16 .............................................................................................................. 17 8冠梁施工 ...................................................................................................................................... 19 9鋼圍檁、鋼支撐體系施工 .............................................................................................................. 21 ............................................................................................................................ 21 、鋼支撐的加工 ....................................................................................................... 23 、鋼支撐的安裝 ....................................................................................................... 23 ................................................................................................................. 26 ..................................................................................................................... 26 10監(jiān)測施工方案 .............................................................................................................................. 27 ........................................................................................................ 27 ................................................................................................................... 28 、方法及數(shù)量 ..................................................................................................... 28 ............................................................................................................... 44 、報警值及安全性判定 ................................................................................ 44 ................................................................................................. 47 ...................................................................................................................... 48 ................................................................................................................... 48 ................................................................................................. 50 ................................................................................................. 51 ................................................................................................................... 52 .......................................................................................................................... 53 ................................................................................................................... 54 ................................................................................................................... 54 2 ............................................................................................................................. 54 ...................................................................................................................... 55 ............................................................................................................ 55 ................................................................................................................... 56 ................................................................................................................... 56 14施工質(zhì)量保證措施 ...................................................................................................................... 58 .........................................................