【正文】 1 目 錄 編制依據(jù) 和編制原則 ........................................ 1 編制依據(jù) ............................................................................................................. 1 編制原則 ............................................................................................................. 1 工程概況 ......................................................... 2 工程地址、規(guī)模 ................................................................................................... 2 工程地質(zhì)、水文條件 ............................................................................................ 2 設(shè)計(jì)原則 ............................................................................................................. 2 托換結(jié)構(gòu)設(shè)計(jì)原則 ...................................................................................... 2 結(jié)構(gòu)設(shè)計(jì)原則 ............................................................................................. 3 工程施工重點(diǎn)、難點(diǎn)分析及解決方案 ................ 4 樁基施工難點(diǎn)解決方案 ........................................................................................ 4 施工空間不足的解決方案 ........................................................................... 4 溶洞處 理方案 ............................................................................................. 4 施工技術(shù)準(zhǔn)備工作 ............................................................................ 4 樁基施工時(shí)溶洞處理 ......................................................................... 5 溶洞施工技術(shù)措施 ............................................................................ 6 受力體系轉(zhuǎn)換重點(diǎn)的應(yīng)對措施 .............................................................................. 8 工期緊迫的應(yīng)對措施 ............................................................................................ 9 施工組織總體部署 .......................................... 11 現(xiàn)場施工組織機(jī)構(gòu) ..............................................................................................11 施工總體部署 .................................................................................................... 12 施工平面布置 ................................................. 14 施工場地狀況及平面布置原則 ............................................................................ 14 施工平面布置說明 ............................................................................................. 14 施工方案 ....................................................... 16 施工測量 ........................................................................................................... 16 復(fù)測 ......................................................................................................... 16 導(dǎo)線控制測量 ........................................................................................... 16 導(dǎo)線平面控制網(wǎng)的選點(diǎn)與布設(shè) ......................................................... 16 精密導(dǎo)線、高程觀測及計(jì)算 ............................................................ 16 X4 ....................................................................... 17 施工放樣 .................................................................................................. 17 樁基放樣 ........................................................................................ 17 2 墩柱施工放樣 ................................................................................. 18 竣工測量 .................................................................................................. 18 臨時(shí)交通便道施工 ............................................................................................. 18 路基施工 .................................................................................................. 18 路面基層施工 ........................................................................................... 19 路面面層施工 ........................................................................................... 20 人行道施工 .............................................................................................. 24 鋼便橋施工 .............................................................................................. 25 樁基托換施工 .................................................................................................... 26 施工方案 .................................................................................................. 26 I I6 樁托換方案 .......................................................................... 26 I7 樁托換方案 ................................................................................. 27 K17 樁托換方案 .............................................................................. 27 E5 樁托換方案 ................................................................................ 28 ZR22 樁托換方案 ............................................................................ 29 施工方法 .................................................................................................. 30 鉆孔樁施工 ............................................................................................ 33 墩柱施工 ............................................................................................... 36 托換梁施工 ............................................................................................ 38 受力體系轉(zhuǎn)換 ........................................................................................... 41 施工監(jiān)測 ....................................................... 44 監(jiān)測內(nèi)容 ........................................................................................................... 44 監(jiān)測說明 ........................................................................................................... 45 施工計(jì)劃 ....................................................... 46 工期計(jì)劃 ........................................................................................................... 46 工期目標(biāo) .................................................................................................. 46 施工工期計(jì)劃 ........................................................................................... 46 勞動力投入