【正文】 1 目 錄 第一章：工程概況 .............................................. 5 、編制說明 ........................................................................................................ 5 、編制范圍 ........................................................................................................ 5 、編制依據(jù) ........................................................................................................ 5 、編制原則 ........................................................................................................ 6 、引用標(biāo)準(zhǔn) ........................................................................................................ 7 工程概述 ........................................................................................................ 10 工程簡介 .............................................................................................. 10 箱梁圖號、規(guī)格、數(shù)量 ...................................................................... 11 主要控制指標(biāo) ...................................................................................... 11 主要質(zhì)量要求 ...................................................................................... 12 梁場地質(zhì)情況 ...................................................................................... 14 工程特點(diǎn)、重點(diǎn)及難點(diǎn) ................................................................................. 18 工程特點(diǎn) ............................................................................................... 18 工程重點(diǎn) ............................................................................................... 19 工程難點(diǎn) ............................................................................................... 19 預(yù)應(yīng)力混凝土箱梁施工質(zhì)量控制要點(diǎn) ............................................... 20 第二章 總體施工組織布置及規(guī)劃 ................................. 20 施工組織管理機(jī)構(gòu)及職責(zé) ............................................................................ 20 管理機(jī)構(gòu)框圖 ...................................................................................... 20 預(yù)制梁場各崗位職責(zé) ........................................................................... 21 施工總體平面布置 ........................................................................................ 29 布置原則 .............................................................................................. 29 施工平面布置 ...................................................................................... 29 工期要求 ............................................................................................... 31 總體規(guī)劃 ........................................................................................................ 31 質(zhì)量目標(biāo) .............................................................................................. 31 安全目標(biāo) .............................................................................................. 31 工期目標(biāo) .............................................................................................. 31 環(huán)保目標(biāo) .............................................................................................. 32 文明施工目標(biāo) ...................................................................................... 32 施工總體順序 ................................................................................................ 32 第三章 梁場建設(shè)方案 .......................................... 33 梁場設(shè)置規(guī)模 ................................................................................................. 33 梁場建設(shè)方案 ................................................................................................. 34 第 四章 箱梁預(yù)制施工工藝及技術(shù)要求 ............................. 34 預(yù)制梁施工準(zhǔn)備工作 ..................................................................................... 34 原材料準(zhǔn)備 ........................................................................................... 34 預(yù)制技術(shù)準(zhǔn)備 ....................................................................................... 42 預(yù)制梁施工工藝流程 ..................................................................................... 43 鋼筋工程 ........................................................................................................ 45 鋼筋施工總體方案 ............................................................................... 45 2 原材料檢驗(yàn) ...................................................................................... 46 鋼筋下料及連接 ............................................................................... 46 鋼筋預(yù)扎 ........................................................................................... 51 鋼筋整體吊裝 .................................................................................. 52 鋼筋綁扎驗(yàn)收標(biāo)準(zhǔn) .......................................................................... 53 模板工程 .................................................................................................... 53 模板安裝流程 .................................................................................. 53 模板拆除 .......................................................................................... 56 混凝土灌注工程 ........................................................................................ 57 整榀箱梁混凝土總體施工方案 ...................................................... 57 準(zhǔn)備工作 .......................................................................................... 58 混凝土攪拌 ...................................................................................... 58 混凝土輸送 ...................................................................................... 58 混凝土灌注 ...................................................................................... 59 混凝土養(yǎng)護(hù) ...................................................................................... 63 預(yù)應(yīng)力工程 ................................................................................................ 65 鋼絞線下料 ...................................................................................... 65 整孔箱梁各預(yù)應(yīng)力束張拉工程 ................