【正文】 地鐵明挖段基坑支護(hù)及土方開挖施工方案地鐵明挖段基坑支護(hù)及土方開挖施工方案地鐵明挖段基坑支護(hù)及土方開挖施工方案目 錄 .........................................................................................................1 編制依據(jù) ..............................................................................................................1 編制原則 ..............................................................................................................2 .....................................................................................................................2 工程的性質(zhì)和作用 ..............................................................................................2 工程地點和結(jié)構(gòu)特征 ..........................................................................................2 場地工程地質(zhì)與水文地質(zhì)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(gòu)筑物情況 ..................................................................................部署 ......................................................................................7 施工目標(biāo) ..............................................................................................................7 工期目標(biāo) ........................................................................................................7 質(zhì)量目標(biāo) ........................................................................................................8 安全目標(biāo) ........................................................................................................8 文明施工目標(biāo) ................................................................................................8 環(huán)境保護(hù)目標(biāo) ................................................................................................8 施工準(zhǔn)備 ..............................................................................................................8 施工技術(shù)準(zhǔn)備 ................................................................................................8 勞動力準(zhǔn)備 ....................................................................................................9 施工機(jī)械、物資準(zhǔn)備 ...................................................................................10地鐵明挖段基坑支護(hù)及土方開挖施工方案 施工總體籌劃、施工部署 ..................................................................................10 公共關(guān)系協(xié)調(diào) ....................................................................................................10 與交通、市政等政府職能部門的施工配合及協(xié)調(diào)措施 ..........................11 與當(dāng)?shù)卣?、單位和居民的施工配合及協(xié)調(diào)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(wǎng)噴混凝土施工 ..........................................................................................22 鋼支撐施工 ..................................................................................................25 監(jiān)控量測 ......................................................................................................29 ...........................................................................................................34 制度保證 ............................................................................................................34 原材料質(zhì)量的保證措施 ....................................................................................35 建立原材料采購制度 ..................................................................................35 建立嚴(yán)格的原材料、成品和半成品進(jìn)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(zhì)量保證措施 ............................................................................36 樁間噴混凝土質(zhì)量保證措施 ............................................................................37 鋼筋網(wǎng)片質(zhì)量保證措施 ..............................................................................37地鐵明挖段基坑支護(hù)及土方開挖施工方案 網(wǎng)噴混凝土質(zhì)量保證措施 ..........................................................................37 樁間噴射混凝土檢驗標(biāo)準(zhǔn) ..........................................................................37 鋼支撐及腰梁質(zhì)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(hù) ......................................................................................................42 預(yù)防鋼支撐墜落安全措施 ..........................................................................43 預(yù)防基坑坍塌安全措施 ..............................................................................44 交叉作業(yè)安全措施 ......................................................................................45 吊裝作業(yè)安全防護(hù) ......................................................................................45 冬期施工安全保證措施 .................