【正文】 ............................42 第六章 關(guān)鍵施工技術(shù)、工藝及工程項(xiàng)目實(shí)施的重點(diǎn)、 難點(diǎn)和解決方案 .................................................................. 43 第一節(jié) 工程的特點(diǎn)、重點(diǎn)、難點(diǎn)分析及施工對(duì)策 ....................................................................43 一、人工挖孔樁施工重難點(diǎn)分析及施工對(duì)策 .......................................................................43 二、測(cè)量定位的重難點(diǎn)分析及對(duì)策 .....................................................................................43 三、攪拌樁施工的重點(diǎn)難點(diǎn)分析及對(duì)策 ..............................................................................44 四、預(yù)應(yīng)力錨桿施工的重點(diǎn)及難點(diǎn)分析 ..............................................................................44 五、噴錨施工重點(diǎn)及難點(diǎn)分析 ............................................................................................45 六、土方開挖的重點(diǎn)難點(diǎn)分析及施工對(duì)策 ...........................................................................45 七、樁間噴射混凝土擋板施工重點(diǎn)難點(diǎn)分析及施工對(duì)策 ......................................................46 八、工程特點(diǎn)、重難點(diǎn)分析 ................................................................................................46 第二節(jié) 工程測(cè)量 .....................................................................................................................47 一、控制網(wǎng)測(cè)量 .................................................................................................................47 二、施工測(cè)量 .....................................................................................................................50 三、測(cè)量工作要求 ..............................................................................................................51 四、質(zhì)量保證措施 ..............................................................................................................51 第三節(jié) 人工挖孔樁施工 ..........................................................................................................52 一、概述 ............................................................................................................................52 二、人工挖孔樁施工工藝流程 ............................................................................................52 三、施工組織 .....................................................................................................................53 四、工效分析 .....................................................................................................................53 五、施工方法及技術(shù)措施 ...................................................................................................54 六、采用旋挖工藝施工支護(hù)樁的方法簡(jiǎn)述 ...........................................................................58 第四節(jié) 水泥攪拌樁施工 ..........................................................................................................60 一、概述 ............................................................................................................................60 二、施工工藝流程 ..............................................................................................................60 三、施工組織 .....................................................................................................................60 四、工效分析 .....................................................................................................................60 五、施工方法及技術(shù)措施 ...................................................................................................61 第五節(jié) 冠梁和錨桿圍檁施工 ...................................................................................................62 一、施工總體策劃及施工流向 ............................................................................................62 二、工藝流程： .................................................................................................................63 三、施工組織 .....................................................................................................................63 四、施工方法及技術(shù)措施 ...................................................................................................63 第六節(jié) 預(yù)應(yīng)力錨桿 .................................................................................................................64 一、概述 ............................................................................................................................64 二、施工工序流程 ..............................................................................................................64 三、施工組織 .....................................................................................................................65 四、工效分析 .....................................................................................................................65 五、施工方法及技術(shù)措施 ...................................................................................................66 第七節(jié) 噴錨支護(hù) .....................................................................................................................68 一、概述 ............................................................................................................................68 二、施工工工藝流程 ..........................................................................................................68 三、施工組織 .....................................................................................................................68 四、工效分析 .....................................................................................................................69 五、施工方法及技術(shù)措施 ...................................................................................................69 第八節(jié) 樁間噴射混凝土擋板 .....................................................................................................70 一、概述 ............................................................................................................................70 二、施工工工藝流程 ..........................................................................................................70 三、施工組織 .....................................................................................................................70