【正文】 .............................................................................. 4 四、本基坑工程特點(diǎn)、難點(diǎn) ................................................................ 6 五、施工組織部署 ................................................................................. 8 1總體部署 ..........................................................................................................................8 2施工組織機(jī)構(gòu) ..................................................................................................................8 3基坑開挖總體設(shè)想及基本施工流程 ..............................................................................9 4施工勞動(dòng)力投入計(jì)劃 .................................................................................................... 11 5施工現(xiàn)場(chǎng)總平面布置 ....................................................................................................12 6施工機(jī)械投 入計(jì)劃 ........................................................................................................13 7周轉(zhuǎn)材料計(jì)劃 ................................................................................................................14 8施工組織 ........................................................................................................................15 9基坑開挖施工計(jì)劃 ........................................................................................................16 六、圍護(hù)樁壓頂 梁、圍檁、支撐施工 ........................................... ..17 ....................................................................................................17 ................................................................................................................25 ................................................................................................................26 ........................................................................................................................26 ........................................................................................................................27 ......................................................................................................................... 28 工程 ............................................................................................................................ 30 七 、基坑降、排水施工 ........................................................................ 34 1自流深井施工 ................................................................................................................34 2井點(diǎn)降水施工 ................................................................................................................37 3排水溝及集水井布置方案 ............................................................................................41 4坑底組織排水措施 ........................................................................................................42 八 、基坑開挖施工 ............................................................................... 43 1基坑開挖施工準(zhǔn)備 ........................................................................................................43 2運(yùn)輸能力分析 ................................................................................................................44 3基坑開挖施工 ................................................................................................................45 4車輛、交通組織 ............................................................................................................46 目 錄 美在花城 基坑支護(hù)土方開挖專項(xiàng)施工方案 5機(jī)械挖土的深度設(shè)置 ....................................................................................................47 九 、基坑監(jiān)測(cè) ......................................................................................... 49 本基坑主要監(jiān)測(cè)內(nèi)容 .................................................................................................49 監(jiān)測(cè)點(diǎn)的布置 .............................................................................................................49 本基坑監(jiān)測(cè)預(yù)警值、要求、數(shù)據(jù)的分析與反饋 .....................................................50 十、支撐結(jié)構(gòu)施工、圍護(hù)支撐結(jié)構(gòu)拆除施工 ................................ 52 十一、基坑支護(hù)應(yīng)急措 施 .................................................................. 53 應(yīng)急指揮組織 .............................................................................................................53 應(yīng)急主要材料準(zhǔn)備 .....................................................................................................54 應(yīng)急措施 .....................................................................................................................54 基坑常見的問題及處理方法 .....................................................................................56 注意 事項(xiàng) .....................................................................................................................58 十二、基坑開挖質(zhì)量要求和質(zhì)量保證措施 ..................................... 59 質(zhì)量保證體系網(wǎng)絡(luò) .....................................................................................................59 質(zhì)量保證措施 .............................................................................................................60 十三、工程樁保護(hù)措施 ....................................................................... 65 十四、工期控制計(jì)劃及保證措施 ...................................................... 66 十五、基坑開挖安全、文明施工措施 ............................................. 68 安全生產(chǎn)保證措施 .....................................................................................................68 現(xiàn)場(chǎng)場(chǎng)地組織管理 .....................................................................................................68 用電技術(shù)措施 .............................................................................................................69 文明施工和標(biāo)準(zhǔn)化管理措施 .....................................................................................70 安全措施和技術(shù)要求 .................................................................................................70 環(huán)境保護(hù)施工措施 ................................................................................