【正文】 ..........................1 設(shè)計(jì)要求 ............................................................................................................................2 水文地質(zhì)條件 ....................................................................................................................3 主樓樁施工質(zhì)量目標(biāo) ........................................................................................................4 編制依據(jù) ............................................................................................................................52 施工部署及進(jìn)度安排 ..............................................................................................................6 施工總體流程 ....................................................................................................................6 施工進(jìn)度計(jì)劃 ....................................................................................................................7 施工場(chǎng)地布置 ....................................................................................................................7 設(shè)備材料使用計(jì)劃 ............................................................................................................8 設(shè)備投入計(jì)劃 ..................................................................................................................................8 主要材料計(jì)劃 ..................................................................................................................................83 鉆孔樁成樁施工 ......................................................................................................................9 工藝概況 ............................................................................................................................9 施工工藝流程 .................................................................................................................10 施工準(zhǔn)備 ........................................................................................................................................10 測(cè)量放樣 ........................................................................................................................................10 鋼護(hù)筒制作、埋設(shè) ........................................................................................................................11 泥漿 ................................................................................................................................................11 成孔 ................................................................................................................................................13 清孔 ................................................................................................................................................13 鋼筋籠 ............................................................................................................................................14 水下混凝土灌注 ............................................................................................................................14 樁孔回填 ........................................................................................................................................15 成樁施工質(zhì)量控制方法及驗(yàn)收標(biāo)準(zhǔn) ..............................................................................16 開(kāi)孔就位 .....................................................................................................................................16 成孔一清 .....................................................................................................................................16 鋼筋籠制作、吊放 .....................................................................................................................18 二次清孔 .....................................................................................................................................19 澆灌水下混凝土 .........................................................................................................................20 質(zhì)量故障的預(yù)防與應(yīng)急處理 .........................................................................................20 質(zhì)量事故的預(yù)防 .........................................................................................................................20 質(zhì)量故障的應(yīng)急處理 .................................................................................................................214 樁端后注漿 .........................................................................................................................23 樁端后注漿概況 .............................................................................................................23 工藝流程 ..........................................................................................................................24 施工步驟 .........................................................................................................................24 預(yù)埋注漿管 ....................................................................................................................................24 壓漿施工 .......................................................................................................................................26 注漿管暢通保證措施 .....................................................................................................27上海中心大廈項(xiàng)目工程主樓鉆孔灌注樁施工方案 第 2 頁(yè) 堵管處理措施 .................................................................................................................28 注漿流程 .........................................................................................................................285 樁側(cè)后注漿方案 ...................................................................................................................29 樁側(cè)后注漿概況 ............................................................................................................29 施工工藝流程 ......................................................