【正文】 法 ............................................................................................................... 17 排水施工 ...................................................................................................................... 19 排水方案 ............................................................................................................... 19 排水管施工 ........................................................................................................... 20 II 降水設(shè)施后期處理 ....................................................................................................... 21 降水 工程監(jiān)測 .............................................................................................................. 21 5 土方開挖及鋼支撐施工 ..................................................................................................... 23 支護(hù)結(jié)構(gòu)施工 .............................................................................................................. 23 鉆孔灌注樁施工 .................................................................................................... 23 冠梁施工 ............................................................................................................... 25 擋土墻施工 ........................................................................................................... 26 軍用梁施工 ............................................................................................................ 26 基坑土方開挖 .............................................................................................................. 29 土方開挖的原則 ..................................................................................................... 29 基坑開挖與支撐施工程序及方法 ........................................................................... 30 鋼支撐施工 ............................................................................................................ 35 樁間網(wǎng)噴施工 ........................................................................................................ 38 基坑開挖的基本要求 ................................................................................................... 39 基坑開挖過程注意事項(xiàng) ............................................................................................... 40 基坑監(jiān)測 ...................................................................................................................... 40 基坑監(jiān)測目的 ........................................................................................................ 40 監(jiān)測項(xiàng)目 ................................................................................................................ 40 6 質(zhì)量保證措施 .................................................................................................................... 42 質(zhì)量保證體系 .............................................................................................................. 42 質(zhì)量保證體系 ........................................................................................................ 42 質(zhì)量保證措施 ........................................................................................................ 43 試驗(yàn)方法及保證措施 .................................................................................................... 44 基坑質(zhì)量控制及措施 .................................................................................................... 45 7 安全保證措施 .................................................................................................................... 47 安全管理體系 .............................................................................................................. 47 安全技術(shù)措施 .............................................................................................................. 47 一般 性安全措施 ..................................................................................................... 48 基坑防護(hù)措施 ........................................................................................................ 48 噴射混凝土安全措施 .............................................................................................. 49 III 基坑排水的安全要求 .............................................................................................. 49 基坑荷載安全防護(hù)措施 .......................................................................................... 50 土方開挖安全措施 ................................................................................................. 50 鋼支撐架設(shè)安全措施 .............................................................................................. 51 基坑支護(hù)監(jiān)測措施 ................................................................................................. 51 軍用梁安裝安全措施 .............................................................................................. 52 8 應(yīng)急預(yù)案 ........................................................................................................................... 54 應(yīng)急領(lǐng)導(dǎo)小組 .............................................................................................................. 54 應(yīng)急響應(yīng) ..................................................................................................................... 55 善后處置 ...................................................................................................................... 55 應(yīng)急搶險(xiǎn)物資 .............................................................................................................. 55 應(yīng)急預(yù)案 ...................................................................................................................... 56 基坑施工事故發(fā)生影響因素 ................................................................................... 56 基坑墜落應(yīng)急預(yù)案 ................................................................................................ 58 基坑坍塌應(yīng)急預(yù)案 ................................................................................................. 59 9 文明施工及環(huán)境保護(hù)的管理及措施 ..............................................................