地鐵明挖段基坑支護及土方開挖施工方案(已修改)

　

【正文】 地鐵明挖段基坑支護及土方開挖施工方案地鐵明挖段基坑支護及土方開挖施工方案地鐵明挖段基坑支護及土方開挖施工方案目 錄 .........................................................................................................1 編制依據 ..............................................................................................................1 編制原則 ..............................................................................................................2 .....................................................................................................................2 工程的性質和作用 ..............................................................................................2 工程地點和結構特征 ..........................................................................................2 場地工程地質與水文地質條件 ..........................................................................5 地下水的影響分析 ..............................................................................................6 工程施工特征 ......................................................................................................6 地下管線及建構筑物情況 ..................................................................................部署 ......................................................................................7 施工目標 ..............................................................................................................7 工期目標 ........................................................................................................7 質量目標 ........................................................................................................8 安全目標 ........................................................................................................8 文明施工目標 ................................................................................................8 環境保護目標 ................................................................................................8 施工準備 ..............................................................................................................8 施工技術準備 ................................................................................................8 勞動力準備 ....................................................................................................9 施工機械、物資準備 ...................................................................................10地鐵明挖段基坑支護及土方開挖施工方案 施工總體籌劃、施工部署 ..................................................................................10 公共關系協調 ....................................................................................................10 與交通、市政等政府職能部門的施工配合及協調措施 ..........................11 與當地政府、單位和居民的施工配合及協調措施 ..................................11 ...................................................................................................................11 施工起點流向 ....................................................................................................11 確定施工順序 ....................................................................................................11 具體的施工方法 ................................................................................................12 冠梁部位土方開挖 ......................................................................................12 樁頭鑿除 ......................................................................................................12 冠梁和擋土墻施工 ......................................................................................12 土方開挖 ......................................................................................................14 網噴混凝土施工 ..........................................................................................22 鋼支撐施工 ..................................................................................................25 監控量測 ......................................................................................................29 ...........................................................................................................34 制度保證 ............................................................................................................34 原材料質量的保證措施 ....................................................................................35 建立原材料采購制度 ..................................................................................35 建立嚴格的原材料、成品和半成品進場驗收制度 ...................................35 建立健全原材料、成品、半成品的管理制度 .............................................36 基坑開挖施工質量保證措施 ............................................................................36 樁間噴混凝土質量保證措施 ............................................................................37 鋼筋網片質量保證措施 ..............................................................................37地鐵明挖段基坑支護及土方開挖施工方案 網噴混凝土質量保證措施 ..........................................................................37 樁間噴射混凝土檢驗標準 ..........................................................................37 鋼支撐及腰梁質量保證措施 ............................................................................38 施工測量精度保證措施 ....................................................................................39 ...........................................................................................................40 安全管理 ............................................................................................................40 安全保障體系 ..............................................................................................40 管線保護 ......................................................................................................42 預防鋼支撐墜落安全措施 ..........................................................................43 預防基坑坍塌安全措施 ..............................................................................44 交叉作業安全措施 ......................................................................................45 吊裝作業安全防護 ......................................................................................45 冬期施工安全保證措施 .................