【正文】 上海市春秋一期 工業(yè)項目工程 圍護樁 施工 專項 方案 上海建工七建集團有限公司 20xx 年 5 月 春秋一期工業(yè)項目 圍護樁專項 方案 2 目錄 一、編制總說明 ............................................................................................................ 1 編制說明 .......................................................................................................... 1 編制依據(jù) .......................................................................................................... 1 二、工程概況 ................................................................................................................ 2 工程性質(zhì) .......................................................................................................... 2 周邊環(huán)境概況 .................................................................................................. 3 基坑安全等級及環(huán)境保護等級 ..................................................................... 4 地質(zhì)概況 .......................................................................................................... 5 地基土的構(gòu)成 ....................................................................................... 5 地下水 ................................................................................................... 5 不良地質(zhì)現(xiàn)象 ....................................................................................... 6 土層參數(shù) ............................................................................................... 6 建筑結(jié)構(gòu)概況 .................................................................................................. 7 建筑概況 ............................................................................................... 7 結(jié)構(gòu)概況 ............................................................................................... 7 基坑圍護概況 .................................................................................................. 8 圍護方案選型 ....................................................................................... 8 基坑圍護施工流程 ............................................................................... 9 監(jiān)測概況 .......................................................................................................... 9 三、總體施工部署 ........................................................................................................ 9 施工區(qū)段劃分及流水施工安排 ...................................................................... 9 大臨施工 ........................................................................................................ 10 臨時設(shè)施 ............................................................................................. 10 臨時道路 ............................................................................................. 10 臨時用水 ............................................................................................. 10 臨時用電 ............................................................................................. 11 臨時排水 ............................................................................................. 11 春秋一期工業(yè)項目 圍護樁專項 方案 3 四、主要施工技術(shù)措施 .............................................................................................. 11 雙軸水泥土攪拌樁 ........................................................................................ 11 施工條件 ............................................................................................ 11 施工流程： .................................................................................. 12 主要施工工藝和施工要求： ................................................. 12 質(zhì)量控制與垂直度控制： ....................................................... 12 壓密注漿 ........................................................................................................ 13 基坑降水 ........................................................................................................ 13 輕井降水施工 .................................................................................... 13 護坡施工 ........................................................................................................ 15 五、監(jiān)測工程 .............................................................................................................. 15 監(jiān)測內(nèi)容 ........................................................................................................ 15 監(jiān)測點布置原則 ........................................................................................... 16 監(jiān)測要求 ........................................................................................................ 16 六、主要安全技術(shù)措施 .............................................................................................. 16 七、基坑工程施工應急措施 ...................................................................................... 18 工地應急組織： ............................................................................................ 18 應急救援材料： ............................................................................................ 19 基坑工程施工應急措施 ................................................................................ 19 沉降控制措施 ................................................................................................ 22 基坑變形預防措施 ........................................................................................ 23 基坑滲漏、變形應急措施 ....................................