【正文】 5墩276墩277墩硬泡沫塑料板 區(qū)域加高平臺(tái)高 ，其他區(qū)域加高平臺(tái)高 。 圖 21 跨 xx 高速 連續(xù)梁平立面位置圖 連續(xù)梁 全長(zhǎng) ，計(jì)算跨度為 40+64+40m,中支點(diǎn)處截面梁高梁高 ，邊支點(diǎn)及中跨跨中截面梁高 ，梁底按二次拋物線 y= 變化， 邊支座中心線至梁端。 工程概況 xx 高速鐵路 xx 至 xx 特大橋 xx橋段在 K113+830（公路里程）處跨越 xx 高速公路（ xx段），對(duì)應(yīng)鐵路里程為 DK1169+。 堅(jiān)持科學(xué)性、先進(jìn)性、 經(jīng)濟(jì)性、合理性與實(shí)用性相結(jié)合的原則 結(jié)合工程特點(diǎn)，采用先進(jìn)的施工技術(shù)，采用科學(xué)的組織方法，合理地安排施工順序、優(yōu)化施工方案。 xx 高速鐵路 xx～ xx 特大橋 xx 橋段 跨 xx 高速 （ 40+64+40） m 連續(xù)梁 掛藍(lán)懸澆 施工方案 xx 股份 xx 高速鐵路土建工程 xx 標(biāo)段 xx 工區(qū) xx 作業(yè)工區(qū) xx 目 錄 編制說(shuō)明 ................................................................................................................................... 4 編制目的 .......................................................................................................................... 4 編制依據(jù) .......................................................................................................................... 4 編制原則 .......................................................................................................................... 4 工程概況 ................................................................................................................................... 5 主要工程數(shù)量 ........................................................................................................................... 6 總體施工安排 ........................................................................................................................... 7 施工平面布置 .................................................................................................................. 7 臨時(shí)工程 .......................................................................................................................... 8 人員配置 .......................................................................................................................... 9 主要施工機(jī)械設(shè)備配置 ................................................................................................. 11 主要試驗(yàn)、檢測(cè)儀器設(shè)備配置 .....................................................................................12 總體施工方案 .................................................................................................................13 施工順序 .........................................................................................................................13 施工計(jì)劃 ..................................................................................................................................14 施工方法 ..................................................................................................................................15 0＃塊施工 .......................................................................................................................15 1塊、 1’ 塊施工 .........................................................................................................23 掛籃懸臂灌筑施工 .........................................................................................................23 邊跨 9塊現(xiàn)澆段施工 ....................................................................................................33 合攏段施工 .....................................................................................................................37 橋面系及附屬工程 .........................................................................................................42 施工工藝及要求 ......................................................................................................................43 鋼筋工程 .........................................................................................................................43 混凝土工程 .....................................................................................................................47 預(yù)應(yīng)力工程 ......................................................................................................................50 管道壓漿 .........................................................................................................................54 封錨及預(yù)留孔封堵 .........................................................................................................56 雨季施工 ..................................................................................................................................57 雨季施工安排 .................................................................................................................57 雨季施工措施及注意事項(xiàng) .............................................................................................57 水土保護(hù) ..........................................................................................................................58 夏季施工 ..................................................................................................................................59 夏季施工安排 .................................................................................................................59 施工準(zhǔn)備 .........................................................................................................................59 混凝土攪拌 .....................................................................................................................60 混凝土運(yùn)輸 ......................................................................................................................60 混凝土澆筑 ......................................................................................................................60 混凝土養(yǎng)護(hù)及拆模 ..........................................................................................................61 質(zhì)量目標(biāo)及保證措施 ............................................................................................................61 質(zhì)量目標(biāo) .......................................................................................................................61 質(zhì)量保證措施 .............................