【正文】 114 號(hào)線(xiàn)工程土建施工 08 合同段右安門(mén)外站主體圍護(hù)結(jié)構(gòu)鉆孔灌注樁施工方案中國(guó)建筑第八工程局有限公司北京市地鐵 14 號(hào)線(xiàn)工程土建施工 08 合同段項(xiàng)目經(jīng)理部2022 年 6 月1目 錄第一章　 編制說(shuō)明 ................................................................................................................................4 編制依據(jù) ......................................................................................................................................4 編制范圍 ......................................................................................................................................5 編制原則 ......................................................................................................................................5 編制目標(biāo) ......................................................................................................................................5第二章 工程概況 ...............................................................................................................................6 基本概況 ......................................................................................................................................6 工程地質(zhì)水文地質(zhì) ......................................................................................................................6 工程地質(zhì) ................................................................................................................................6 水文地質(zhì) ................................................................................................................................6 圍護(hù)結(jié)構(gòu)概況 .............................................................................................................................7第三章 鉆孔灌注樁施工方法 .............................................................................................................9 圍護(hù)樁施工設(shè)備選擇 ..................................................................................................................9 圍護(hù)樁施工工藝 ..........................................................................................................................9 施工準(zhǔn)備 ................................................................................................................................9 施工總體部署及計(jì)劃 ............................................................................................................9 施工工藝 ..............................................................................................................................10 質(zhì)量控制標(biāo)準(zhǔn) ......................................................................................................................15第四章 質(zhì)量保證體系及措施 ...........................................................................................................171 質(zhì)量目標(biāo) ....................................................................................................................................17 質(zhì)量保證體系 ............................................................................................................................17 組織保證措施 ......................................................................................................................17 制度保證措施 ......................................................................................................................17 技術(shù)保證措施 ......................................................................................................................18 主要工序質(zhì)量控制措施 ............................................................................................................21 鋼筋工程質(zhì)量保證措施 ......................................................................................................21 混凝土工程質(zhì)量控制及措施 ..............................................................................................22 隱蔽工程質(zhì)量控制及措施 ..................................................................................................24 常見(jiàn)問(wèn)題及處理措施 ................................................................................................................24 孔壁坍塌 ..............................................................................................................................24 縮頸 ......................................................................................................................................25 樁底沉渣量過(guò)多 ....................................................