【正文】 .........27? 4 (一 ) 引橋現(xiàn)澆連續(xù)箱梁施工 ...........................................................................................................27(二 ) 主橋邊孔施工 ...........................................................................................................................33基礎(chǔ)處理 .........................................................................................................................................342. 支架安裝 ..........................................................................................................................................343. 拱架安裝 ..........................................................................................................................................354. 拱圈模板 (底模、側(cè)模 )安裝 ............................................................................................................375. 鋼筋綁扎 ..........................................................................................................................................376. 拱圈側(cè)模安裝 ..................................................................................................................................377. 拱圈混凝土澆筑 ..............................................................................................................................378. 模板拱架的拆除 ..............................................................................................................................399．拱肋橫梁、系梁施工 .....................................................................................................................4010．拱上立柱橫梁施工 .......................................................................................................................40(三 ) 吊扣系統(tǒng)的安裝： ...................................................................................................................40扣塔及索鞍： .................................................................................................................................40錨錠、錨梁及扣點(diǎn)： .....................................................................................................................40(四 ) 鋼管拱肋加工 ...........................................................................................................................441. 主要工藝流程 ...............................................................................................................................442. 加工方案要點(diǎn) ...............................................................................................................................44(五 ) 主拱圈鋼管桁架的加工及安裝 ...............................................................................................48鋼管桁架的加工 .............................................................................................................................48鋼管桁架節(jié)段安裝 (分環(huán)分段 ).......................................................................................................48松扣與卸扣 .....................................................................................................................................48(六 ) 系桿安裝 ...................................................................................................................................49(七 ) 鋼管砼施工 ...............................................................................................................................491. 泵送高強(qiáng)度微膨脹混凝土的施工工藝流程 :..............................................................................492. 砼質(zhì)量要求 ...................................................................................................................................503. 灌注高強(qiáng)度微膨脹混凝土方法 ...................................................................................................504. 泵送要點(diǎn) .......................................................................................................................................515. 鋼管高強(qiáng)度微膨脹混凝土灌注時骨架應(yīng)力及變形 ...................................................................516. 施工質(zhì)量控制 ...............................................................................................................................51(八 ) 拱上立柱、橋面梁施工 ...........................................................................................................52(九 ) 橋面鋪裝 ...................................................................................................................................52三、 纜吊施工方案 ...............................................................................................................................54(一 ) 施工條件和施工特點(diǎn) ...............................................................................................................54(二 ) 施工方法 ...................................................................................................................................54(三 ) 纜索吊裝觀測內(nèi)容 ...................................................................................................................55(四 ) 纜索吊裝拱肋的穩(wěn)定措施 .......................................................................................................56四、 防腐工藝的設(shè)計(jì)與施工 ...............................................................................................................57(一 ) 防腐工藝的設(shè)計(jì) .......................................................................................................................57(二 ) 防腐工藝的施工 .......................................................................................................................57? 5 第五章 質(zhì)量保證體系和質(zhì)量保證措施 ...................................................................................................58一、 質(zhì)量方針 .......................................................................................................................................58二、 質(zhì)量保證體系框圖 .......................................................................................................................58三、 建立工程質(zhì)量保證組織機(jī)構(gòu): ......................................................................................................58四、 質(zhì)量保證措施 ..............................