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交通土建始發(fā)井開挖及支護(hù)安全專項(xiàng)施工方案-文庫吧資料

2025-05-19 00:45本頁面
  

【正文】 鋼支撐,豎井間距 4m巖層 C22 砂漿錨桿,L=6m,間距 11m Φ8雙層鋼筋網(wǎng),間距 厚 C25噴射混凝土格柵鋼架:主筋 C25,間距 1mC22 豎向連接筋,環(huán)向間距 1m,內(nèi)外交錯布置 2 / 111 工程地質(zhì) 地層地貌本段原始地貌為構(gòu)造剝蝕丘陵地貌,丘包和溝谷相間排列,由于地處城市中心地帶,人類工程活動頻繁,場地地形和地貌都有較大的改變,沿線地表主要為城市主干道,局部為居民區(qū),順線路走向地勢逐漸升高,地形坡角一般為 35176。青寶區(qū)間 TBM 始發(fā)井開挖尺寸為 (長寬),深度約為 46m。區(qū)間青寶區(qū)間 TBM 始發(fā)井位于構(gòu)造剝蝕丘陵地貌,丘包和溝谷相間排列。重慶市軌道交通 9 號線一期工程土建 12 標(biāo)青寶區(qū)間 TBM 始發(fā)井開挖及支護(hù)安全專項(xiàng)施工方案 編 制: 復(fù) 核: 審 核: 中國建筑股份有限公司重慶市軌道交通九號線 12 標(biāo)項(xiàng)目經(jīng)理部二〇一七年三月i / 111目 錄一、工程概況 ...................................................................................................................... 1 工程概況 ................................................................................................................ 1 工程地質(zhì) ................................................................................................................ 2 地層地貌 ..................................................................................................... 2 地層巖性 ..................................................................................................... 2 地質(zhì)構(gòu)造 ..................................................................................................... 3 水文地質(zhì)條件 ............................................................................................. 3 不良地質(zhì)作用與特殊巖土 ......................................................................... 4 工程環(huán)境及施工條件 ............................................................................................ 4 氣候條件 ..................................................................................................... 4 交通條件 ..................................................................................................... 5 施工用水、電、通訊條件 ......................................................................... 5 施工環(huán)境條件調(diào)查 ................................................................................................ 5 周邊建筑物情況 ......................................................................................... 5 交通疏解情況 ............................................................................................. 6 管線調(diào)查情況 ............................................................................................. 6 工程重、難點(diǎn) ........................................................................................................ 6 基坑開挖壁的穩(wěn)定性分析 .................................................................................... 7 施工要求 ................................................................................................................ 7 二、編制依據(jù) ...................................................................................................................... 7 相關(guān)的法律、法規(guī) ................................................................................................ 7 規(guī)范、技術(shù)規(guī)程 .................................................................................................... 8 圖紙、圖集及施工組織設(shè)計(jì) ................................................................................ 8 三、施工計(jì)劃 ...................................................................................................................... 9 施工進(jìn)度計(jì)劃 ........................................................................................................ 9 總體施工安排 ............................................................................................. 9 工期目標(biāo) ..................................................................................................... 9 主要項(xiàng)目進(jìn)度計(jì)劃 ..................................................................................... 9 工期保證措施 ........................................................................................... 10 施工材料計(jì)劃 ...................................................................................................... 11 ii / 111 主要物資計(jì)劃 ........................................................................................... 11 材料供應(yīng)保證措施 ................................................................................... 11 主要設(shè)備計(jì)劃 ...................................................................................................... 12 四、施工工藝技術(shù) ............................................................................................................ 12 總體施工流程 ...................................................................................................... 12 主要設(shè)計(jì)參數(shù) ...................................................................................................... 15 冠梁與第一道混凝土支撐施工 .......................................................................... 16 施工參數(shù) ................................................................................................... 16 施工工藝流程 ........................................................................................... 17 施工方法 ................................................................................................... 17 驗(yàn)收標(biāo)準(zhǔn) ................................................................................................... 18 填土段開挖施工 .................................................................................................. 19 填土段開挖組織原則 ............................................................................... 19 施工工藝流程 ........................................................................................... 20 施工方法及要求 ....................................................................................... 20 渣土提升方案 ........................................................................................... 20 鋼支撐安裝與拆除施工 ..................................................................................... 21 鋼支撐設(shè)計(jì)概況 ...................................................................................... 21 鋼支撐施工工藝 ...................................................................................... 22 鎖口圈梁與第二道混凝土支撐施工 .
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