【正文】 1 改建 鐵路孟平線 孟廟 至平頂山西段增建第二線工程 DK48+560 120m 框架橋 施工 方案 編制： 審核： 審批： 中鐵七局集團(tuán)孟平鐵路二線工程項(xiàng)目部二分部 二○一 四 年 三 月i 目錄 .............................................................................................................................................. 1 編制依據(jù) .............................................................................................................................................................. 1 編制范圍 .............................................................................................................................................................. 1 ..................................................................................................................................... 2 工程概況 .............................................................................................................................................................. 2 工程數(shù)量 .............................................................................................................................................................. 3 ............................................................................................................................................................ 1 ............................................................................................................................................................ 1 施工組織機(jī)構(gòu) ..................................................................................................................................................... 2 施工任務(wù)劃分 ..................................................................................................................................................... 3 .............................................................................................................................................. 4 施工便道 .............................................................................................................................................................. 4 施工改路 .............................................................................................................................................................. 4 施工用水 .............................................................................................................................................................. 5 施工用電 .............................................................................................................................................................. 5 混凝土拌合站 ..................................................................................................................................................... 5 6 施工工藝及方法 ....................................................................................................................................................... 5 施工工藝流程 ..................................................................................................................................................... 5 施工方法 .............................................................................................................................................................. 5 施工準(zhǔn)備 ..................................................................................................................................................... 6 測(cè)量放樣 ..................................................................................................................................................... 7 基礎(chǔ)施工 .............................................................................................................................................................. 7 基坑開挖 ..................................................................................................................................................... 7 基底檢驗(yàn) ..................................................................................................................................................... 8 地基處理 ..................................................................................................................................................... 9 混凝土墊層澆注 ........................................................................................................................................ 9 框架身主體施工 ............................................................................................................................................ 10 中鐵七局集團(tuán)孟平鐵路二線工程項(xiàng)目部二分部 DK48+ 19m 框架橋框架橋 施工 方案 ii 鋼筋加工及安裝 ...................................................................................................................................... 10 框架身底板施工 ...................................................................................................................................... 11 框架身邊墻及頂板模板施工 ............................................................................................................... 12 框架身混凝土施工 ................................................................................................................................. 15 沉降縫及施工縫施工 ............................................................................................................................. 17 混凝土養(yǎng)生 ............................................................................................................................................... 18 混凝土拆模 ............................................................................................................................................... 19 防水層施工 ...................................................................................................................................................... 19 防水層的組成 ............................................