【正文】 ..........57 3 施工方法及技術(shù)控制措施 ..............................................................................57 測(cè)量放線 ..................................................................................................57 控制點(diǎn)布置與保護(hù) ...........................................................................57 樁位測(cè)放 ...........................................................................................58 測(cè)量放線的檢查、驗(yàn)收與保護(hù) .......................................................59 泥漿系統(tǒng)的布置與泥漿制備、處理、排放 ..........................................59 泥漿系統(tǒng)的組成與布置 ...................................................................59 泥漿制備 ...........................................................................................60 泥漿處理與排放 ...............................................................................61 護(hù)筒埋設(shè) ...................................................................................................61 護(hù)筒埋設(shè)步驟 ....................................................................................62 護(hù)筒埋設(shè)的做法及注意事項(xiàng) ............................................................62 成孔 .........................................................................................................63 6 施工組織設(shè)計(jì) 覆蓋層鉆進(jìn) ......................................................................................63 巖層鉆進(jìn) ..........................................................................................64 鉆進(jìn) .............................................................................................64 確定達(dá)到設(shè)計(jì)入巖深度 ............................................................65 成孔時(shí)應(yīng)注意的問題 .......................................................................65 成孔質(zhì)量驗(yàn)收 ...................................................................................65 泥漿指標(biāo)檢測(cè) ............................................................................66 孔徑檢測(cè) .....................................................................................66 鉆孔深度、沉渣厚度檢測(cè) .........................................................66 清孔 ....................................................................................................67 鋼筋籠制作與運(yùn)輸 ..................................................................................67 鋼筋驗(yàn)收、堆放與標(biāo)識(shí) ...................................................................67 鋼筋驗(yàn)收質(zhì)量標(biāo)準(zhǔn)及檢驗(yàn)項(xiàng)目 .......................................................67 鋼筋質(zhì)量標(biāo)準(zhǔn)、檢驗(yàn)項(xiàng)目和檢驗(yàn)頻率 ....................................67 鋼筋取樣方法及取樣要求 .........................................................68 鋼筋籠制作工藝流程 .......................................................................68 鋼筋除銹與調(diào)直 ...............................................................................68 鋼筋焊接 ...........................................................................................69 主筋焊接 ....................................................................................69 加筋箍筋焊接 ............................................................................70 鋼筋焊接接頭的質(zhì)量檢查 ........................................................70 檢驗(yàn)項(xiàng)目 .............................................................................70 取樣要求 .............................................................................71 結(jié)果評(píng)定 .............................................................................71 鋼 筋籠成型 .......................................................................................72 鋼筋籠制作允許偏差 .......................................................................73 鋼筋籠的驗(yàn)收與成品保護(hù) ...............................................................73 7 施工組織設(shè)計(jì) 鋼筋籠運(yùn)輸 .......................................................................................73 混凝土攪拌及運(yùn)輸 ..................................................................................73 砼攪拌系統(tǒng)施工布置 .......................................................................73 砼攪拌站的選擇 ...............................................................................73 砼攪拌站的要求 ...............................................................................74 砼攪拌流程 .......................................................................................74 砼質(zhì)量標(biāo)準(zhǔn) .......................................................................................74 混凝土原材料質(zhì)量檢驗(yàn) ...................................................................75 原材料質(zhì)量標(biāo)準(zhǔn)、檢驗(yàn)項(xiàng)目和檢驗(yàn)頻率 ................................75 混凝土原材料取樣方法及取樣要求 ........................................76 散裝水泥 .............................................................................76 砂石料 .................................................................................76 外加劑 .................................................................................76 粉煤灰 .................................................................................76 攪拌要求 ...........................................................................................77 試塊制作 ...........................................................................................77 砼運(yùn)輸 ................................................................................................78 水下混凝土灌注 .......................................................................................78 鋼筋籠吊放與定位 ............................................................................78 鋼筋籠的吊放 .............................................................................78 鋼筋籠孔口連接 .........................................................................79 鋼筋籠定位 .................................................................................79 下設(shè)導(dǎo)管 ............................................................................................80 二次清孔 ............................................................................................80 水下砼灌