【正文】 ......................................................................................... 44 合龍段吊架 ..................................................................................................... 44 合龍段施工配重 ............................................................................................. 44 合龍段臨 時(shí)鎖定措施 ..................................................................................... 44 合龍段混凝土澆筑前的準(zhǔn)備工作 ................................................................. 47 合龍段混凝土的澆筑及養(yǎng)護(hù) ......................................................................... 48 注意事 項(xiàng) ......................................................................................................... 48 體系轉(zhuǎn)換 ......................................................................................................... 49 連續(xù)梁鋼筋施工 ....................................................................................................... 50 （ 40+64+40） m 連續(xù)梁施工方案 III 工藝流程 ......................................................................................................... 50 質(zhì)量控制要點(diǎn) ................................................................................................. 50 質(zhì)量控制程序 ................................................................................................. 54 鋼筋及預(yù)應(yīng)力管道安裝 ................................................................................. 54 預(yù)應(yīng)力施工 ............................................................................................................... 56 預(yù)應(yīng)力體系 ..................................................................................................... 56 伸長(zhǎng)值的計(jì)算 ................................................................................................. 57 張拉前的準(zhǔn)備工作 ......................................................................................... 57 縱向預(yù)應(yīng)力體系施工 ..................................................................................... 58 橫向預(yù)應(yīng)力體系施工 ..................................................................................... 61 豎向預(yù)應(yīng)力體系施工 ..................................................................................... 63 管道壓漿 ......................................................................................................... 64 封錨 ................................................................................................................. 66 混凝土施工 ............................................................................................................... 66 工程概況 ......................................................................................................... 66 混凝土供應(yīng)方案 ............................................................................................. 66 混凝土施工前準(zhǔn)備 ......................................................................................... 67 混凝土拌和、運(yùn)輸及輸送 ............................................................................. 69 混凝土澆筑方法 ............................................................................................. 70 混凝土養(yǎng)護(hù) ..................................................................................................... 72 線型控制方案 ........................................................................................................... 72 線型控制基本原理 ......................................................................................... 72 預(yù)拱度計(jì)算 ..................................................................................................... 73 節(jié)段前緣施工標(biāo)高確定 ................................................................................. 73 現(xiàn)場(chǎng)施工控制 ................................................................................................. 74 橋面附屬工程施工工藝 ......................................................................................... 75 防護(hù)墻、電纜槽施工 ................................................................................... 75 防水層施工 ................................................................................................... 77 接觸網(wǎng)支柱基礎(chǔ)及下錨拉線基礎(chǔ) ............................................................... 77 人行道欄桿 ................................................................................................... 77 橋梁綜合接地裝置 ....................................................................................... 77 （ 40+64+40） m 連續(xù)梁施工方案 IV 5 夏季施工方案 ..................................................................................................................... 78 組織準(zhǔn) 備 .................................................................................................................... 78 技術(shù)準(zhǔn)備 ................................................................................................................... 78 原材料準(zhǔn)備 ............................................................................................................... 78 、水泥 ............................................................................................................... 78 、骨料 ............................................................................................................... 78 、水 ................................................................................................................... 78 、外加劑 ........................................................................................................... 78 混凝土拌制 ................................................................................................................ 78 混凝土運(yùn)輸 ............................................................................................................... 79 混凝土澆筑 ............................................................................................................... 79 混凝土的養(yǎng)護(hù) ........................................................................................................... 79 6 施工措施 .......................................