【正文】 國道 205 線三明市區(qū)過境段工程 A1 合同段K3+708K3+760 預應力錨索樁板擋墻施工方案 編 制：復 核：審 批： 中國中鐵航空港建設集團有限公司一公司三明項目經(jīng)理部編制 2022 年 6 月 1 日1 / 62目錄一、編制依據(jù)及原則 ...........................................................................................................................................1 編制依據(jù) ...................................................................................................................................................1 編制原則 ...................................................................................................................................................1 編制范圍...................................................................................................................................................2二、工程概況 .......................................................................................................................................................2 概況 ...........................................................................................................................................................2 水文地質條件 ...........................................................................................................................................2 主要工程數(shù)量 ...........................................................................................................................................3三、施工部署及施工準備 ...................................................................................................................................3 施工部署 ...................................................................................................................................................3 組織機構 ...................................................................................................................................................4 設備、人員投入 .......................................................................................................................................4 主要材料及周轉計劃 ...............................................................................................................................6 技術準備 ...................................................................................................................................................6 臨建工程 ...................................................................................................................................................6四、施工進度計劃 ...............................................................................................................................................7五、施工方法及施工工藝 ...................................................................................................................................8 總體方案 ...................................................................................................................................................8 樁板墻施工順序（工藝）及方法 ...........................................................................................................9 施工工藝流程 ..................................................................................................................................9 鎖口施工 ..........................................................................................................................................9 樁身土石開挖 ................................................................................................................................10 護壁施工 ........................................................................................................................................12 樁身鋼筋施工 ................................................................................................................................14 樁身混凝土澆筑 ............................................................................................................................15 樁前土開挖及砼圬工拆除 ............................................................................................................15 擋土板施工 ....................................................................................................................................16 施工中可能遇到的特殊問題的處理 ............................................................................................18 預應力錨索施工順序（工藝）及方法 .................................................................................................19 施工工藝流程 ................................................................................................................................19 鉆孔清孔 ........................................................................................................................................192 / 62 錨索制安 ........................................................................................................................................20 錨固注漿 ........................................................................................................................................21 澆筑錨固板 ....................................................................................................................................21 錨筋張拉鎖定（張拉力和伸長量雙控） ....................................................................................22六、質量保證措施 .............................................................................................................................................22 質量目標.................................................................................................................................................22 質量管理體系.........................................................................................................................................22 保證工程質量的措施.............................................................................................................................23 保證工程質量的措施.............................................................................................................................24 質量事故及專題質量問題報告制度 ........