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xx年成都珠江潤(rùn)景房地產(chǎn)開(kāi)發(fā)有限公司珠江新城c區(qū)基坑降水護(hù)壁方案設(shè)計(jì)-文庫(kù)吧在線(xiàn)文庫(kù)

  

【正文】 ...........................................................................................................................................5 第三部分 基坑支護(hù)方案設(shè)計(jì) ......................................................................................................................6 ...............................................................................................................................................6 ........................................................................................................................................6 .............................................................................................................................6 4 基坑護(hù)壁方案設(shè)計(jì) .................................................................................................................................6 計(jì)算參數(shù)的選擇 ...........................................................................................................................6 設(shè)計(jì)計(jì)算 .....................................................................................................................................7 護(hù)壁方案簡(jiǎn)述 ..............................................................................................................................7 排樁護(hù)壁 ............................................................................................................................7 噴錨護(hù)壁 ............................................................................................................................7 ...................................................................................................................8 變形監(jiān)測(cè)設(shè)計(jì) ..............................................................................................................................8 信息化施工 ................................................................................................................................ 10 報(bào)警及搶險(xiǎn)預(yù)案 ......................................................................................................................... 10 ...................................................................................................................................... 10 人工挖孔樁施工 ......................................................................................................................... 10 人工挖孔樁工序 ............................................................................................................... 10 測(cè)定樁位 .......................................................................................................................... 10 土方挖掘 .......................................................................................................................... 10 砼護(hù)圈施工 ...................................................................................................................... 10 鋼筋籠制作 ...................................................................................................................... 11 鋼筋籠的檢查 ................................................................................................................... 11 樁芯砼澆筑 ...................................................................................................................... 11 樁頂連系梁施工 ............................................................................................................... 12 錨 桿施工 ................................................................................................................................... 12 面層施工 ................................................................................................................................... 12 噴錨面層施工 ................................................................................................................... 12 樁間護(hù)壁施工 ................................................................................................................... 12 護(hù)壁施工質(zhì)量控制措施 .............................................................................................................. 13 關(guān)鍵工序質(zhì)量控制措施 ..................................................................................................... 13 特殊工序質(zhì)量控制措施 ..................................................................................................... 13 特殊過(guò)程控制 ................................................................................................................... 14 人工挖孔樁施工安全措施 ........................................................................................................... 14 ............................................................................................................................................. 15 信息化施工及預(yù)警指標(biāo)出現(xiàn)后的措施 ......................................................................................... 15 突發(fā)災(zāi)害的搶險(xiǎn)措施 .................................................................................................................. 15 ................................................................................................................................................ 15 挖孔樁護(hù)壁計(jì)算書(shū) ...........................................................................................錯(cuò)誤 !未定義書(shū)簽。按照建設(shè)單位的施工進(jìn)度安排,先施工無(wú)地下室的 18 層高層建筑,然后再開(kāi)挖地下室。 地層巖性 根據(jù)地勘資料,在勘察揭露深度內(nèi),場(chǎng)地土由第四系全新統(tǒng)人工填土層( Q4ml)和第四系全新統(tǒng)沖洪積層( Q4al+pl)構(gòu)成 ,由上至下各地層的結(jié)構(gòu)特征為: 第四系全新統(tǒng)人工填土層( Q4ml) ( 1) 雜填土:褐灰色,稍密,主要由人工回填夯實(shí)的砂卵石組成,含少量碳渣,新近堆積。以砂粒為主,少許粉粘粒。根據(jù)《成都地區(qū)建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范》( DB51/T50262020)表 及 N120 動(dòng)力觸探錘擊數(shù),將卵石層分為松散~密實(shí) 4 個(gè)亞層。 N120 動(dòng)力觸探修正擊數(shù)為 ~ 擊,標(biāo)準(zhǔn)值為 擊。 錯(cuò)誤 !未找到引用源。 《建筑邊坡工程技術(shù)規(guī)范》( GB503302020); 錯(cuò)誤 !未找到引用源。因此,本工程擬采用管井法降水。 含水層厚度: HO= 。 基坑涌水量 Q總 = 錯(cuò)誤 !未找到引用源。 成井時(shí) 要求井孔應(yīng)圓整垂直,井管焊接牢固,安裝垂直。 水位達(dá)到設(shè)計(jì)降水深度后 ,可每天觀(guān)測(cè)一次水位;水位觀(guān)測(cè)允許誤差為: 177。 錯(cuò)誤 !未找到引用源。為防止破壞場(chǎng)地內(nèi)地下管線(xiàn),人工開(kāi)挖 ,埋 好護(hù)壁管,管徑 700mm,護(hù)壁管埋設(shè)完畢后開(kāi)始鉆進(jìn)成孔。中管網(wǎng)房地產(chǎn)頻道 2020 版房地產(chǎn)企業(yè)管理大全》內(nèi)容更豐富、查看更輕松、利用更便利、價(jià)格更實(shí)惠、購(gòu)買(mǎi)更放心!電話(huà): 02568698690,68698693 手機(jī): 15895950966 : 961531377 376977591
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