【正文】 ................................................................................................... 2 一、 編制依據(jù) ........................................................................................................................ 2 二、 編制范圍 ........................................................................................................................ 2 三、 編制原則 ........................................................................................................................ 2 第三章 工程概況及主要工程數(shù)量 ................................................................................................ 4 一、 概述 ............................................................................................................................... 4 二、 技術(shù)標(biāo)準(zhǔn) ........................................................................................................................ 4 三、 地形地貌 ........................................................................................................................ 4 四、 氣象 ............................................................................................................................... 5 五、 震動參數(shù) ........................................................................................................................ 5 六、 工程、水文地質(zhì) .............................................................................................................. 5 （一）地層及構(gòu)造 ................................................................................................................. 5 （二）水文地質(zhì) ..................................................................................................................... 5 （三）不良地質(zhì)和特殊巖土 ................................................................................................... 5 七、 主要工程數(shù)量 ................................................................................................................. 5 第四章 施工總體方案 ................................................................................................................. 7 一、 施工重點、難點 ................................................................................................................. 7 （一）施工準(zhǔn)備 ..................................................................................................................... 7 （二）混凝土冬期施工及溫控措施 ......................................................................................... 7 （三）冬季施工的混凝土澆注 ................................................................................................ 8 （四）混凝土拆模 ................................................................................................................. 8 （五）冬季施工的混凝土養(yǎng)護(hù) ................................................................................................ 9 （六）冬季施工混凝土質(zhì)量檢查 ............................................................................................ 9 二、 總體施工方案 ................................................................................................................. 9 三、 施工組織機構(gòu) ................................................................................................................10 （一）各職能部門、作業(yè)隊內(nèi)容和職責(zé) .................................................................................10 （二）人員配置 ....................................................................................................................20 四、 大臨工程的分布及總體設(shè)計 ...........................................................................................20 （一）布置原則 ....................................................................................................................20 （二）營地布置 ....................................................................................................................21 （三）施工通訊 ....................................................................................................................21 （四）施工道路 ....................................................................................................................21 （ 五）混凝土拌和站 .............................................................................................................21 （六）鋼筋加工場 ................................................................................................................21 （七）施工用電 ....................................................................................................................21 （八）施工用水 ....................................................................................................................21 第五章 主要項目的施工工藝和施工方法 ....................................................................................22 一、 鉆孔灌注樁 ....................................................................................................................22 （一）鉆機選型 ....................................................................................................................22 （二）鉆孔前的準(zhǔn)備工作 ......................................................................................................22 （三）成孔工藝 ....................................................................................................................22 （四）鉆孔事故的預(yù)防與處理 ...............................................................................................24 （五）鋼筋籠的制安 .............................................................................................................25 （六）灌注水下混凝土 .........................................................................................................26 蘭州交通大學(xué)博文學(xué)院畢業(yè)設(shè)計（論文） （七）鉆孔樁施工工藝框圖 ..................................................................................................27 圖 51鉆孔樁施工工藝框圖 ......................................................................................................28 二、 承臺施工方法 ................................................................................................................29 （一）基坑開挖 ......................