【正文】 ...................3 地質(zhì)、水文 .............................................................................................................................3 氣象概況 .................................................................................................................................3 周邊環(huán)境 .................................................................................................................................3四、總體施工安排 ............................................................................................................................4 施工進(jìn)度計(jì)劃 .........................................................................................................................4 施工人員情況 .........................................................................................................................4 機(jī)械設(shè)備 .................................................................................................................................5 施工場(chǎng)地布置 .........................................................................................................................5五、箱涵施工方案 ............................................................................................................................6 箱涵工程施工工藝流程 .........................................................................................................6 定位放線 ..................................................................................................................................7 基坑 開挖 ..................................................................................................................................7 鋼板樁支護(hù)開挖施工 .............................................................................................................8 墊層施工 ................................................................................................................................12 鋼筋制作與安裝 ....................................................................................................................13 模板工程 ................................................................................................................................16 混凝土澆注工程 ....................................................................................................................17 箱涵基坑回填 ........................................................................................................................19 基坑土 方開挖常見(jiàn)問(wèn)題及處理措施 .................................................................................20六、鋼板樁圍護(hù)結(jié)構(gòu)計(jì)算書 ..........................................................................................................21七、基坑監(jiān)測(cè) ..................................................................................................................................24 基坑監(jiān)測(cè)的目的 ...................................................................................................................24 監(jiān)測(cè)內(nèi)容 ...............................................................................................................................25 監(jiān)測(cè)精度要求 .......................................................................................................................25 施工監(jiān)測(cè)組織機(jī)構(gòu) ...............................................................................................................25 施工監(jiān)測(cè)數(shù)據(jù)處理及信息反饋 ...........................................................................................26 控制地面下沉、防止建筑物下沉開裂措施 .......................................................................27八、基坑巡查措施 ..........................................................................................................................27九、安全保證措施 ..........................................................................................................................28 安全保證組織機(jī)構(gòu) ...............................................................................................................28 基坑開挖安全保證措施 .......................................................................................................292 / 73 基坑開挖分級(jí)預(yù)警制度及應(yīng)對(duì)措施 ...................................................................................30 具體安全保證措施 ...............................................................................................................30十、基坑開挖應(yīng)急預(yù)案 ..................................................................................................................34 工程風(fēng)險(xiǎn)源分析 ..................................................................................................................34 應(yīng)急領(lǐng)導(dǎo)小組及人員分工 .................................................................................................35 應(yīng)急救援物資 .....................................................................................................................35 突發(fā)事件搶險(xiǎn)程序 .............................................................................................................36 突發(fā)事件應(yīng)急搶險(xiǎn)具體措施 .............................................................................................36十一、雨季施工措施 ......................................................................................................................40十二、質(zhì)量保證體系及措施 ..........................................................................................................40 質(zhì)量保證體系及質(zhì)量目標(biāo)的實(shí)現(xiàn) ......................................................................................40 質(zhì)量保證措施 .....................................................................................................................42 分項(xiàng)工程質(zhì)量保證措施 ......................................................................................................43 季節(jié)性施工技術(shù)措施 ..........................................................................................................46 原材料質(zhì)量保證措施 ..........................................................................................................46十三、安全生產(chǎn)保證體系及措施 ..................................................................................................48 安全生產(chǎn)目標(biāo)及保證體系 ..........................................................