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珠江三角洲城際快速軌道交通廣州至佛山段施工14標(biāo)段沙涌站~沙園站盾構(gòu)區(qū)間下穿珠江施工方案(存儲版)

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【正文】 1 中鐵二局股份有限公司 目 錄 1編制依據(jù) ............................................................................................................................. 1 2工程概況 ............................................................................................................................. 1 ......................................................................................................................... 1 、特性與物理力學(xué)指標(biāo) ............................................................. 2 .................................................................................................................. 5 ....................................................................................................... 6 廣州地區(qū)的氣候情況 ....................................................................................................... 6 ................................................................................................ 6 ................................................................................................ 7 工中應(yīng)注意的主要地質(zhì)問題 ......................................................................................... 7 3施工重難點(diǎn)及對策措施 ....................................................................................................... 7 4施工籌劃 ........................................................................................................................... 10 ....................................................................................................................... 10 .................................................................................................. 10 ........................................................................................... 12 ....................................................................................................................... 13 ....................................................................................................................... 13 .............................................................................................. 13 ............................................................................................................ 13 .............................................................................................. 14 .................................................................................................. 14 4, .................................................................................... 14 注漿 ........................................................................................... 15 盾構(gòu) 始發(fā)段及 試掘進(jìn)段 掘進(jìn)參數(shù)總結(jié) .............................................................................. 16 ....................................................................................................................... 16 ....................................................................................................................... 16 .......................................................................................................................... 16 ....................................................................................................................... 17 ....................................................................................................................... 17 .......................................................................................................................... 18 ....................................................................................................................... 18 6穿越珠江北航道技術(shù)措施 .................................................................................................. 18 ............................................................................................................ 18 掘進(jìn)模式選擇 ......................................................................................................... 21 .............................................................................................. 21 珠江三角洲城際快速軌道交通廣州至佛山段施工 14 標(biāo)段【沙涌站~沙園站盾構(gòu)區(qū)間】 下 穿 珠 江施工 方案 2 中鐵二局股份有限公司 土改良 ....................................................................................................................... 21 ..................................................................................................... 22 .............................................................................................................. 22 注漿 .............................................................................................................. 23 管片姿態(tài)的控制 ............................................................................................................ 25 出土量控制 .................................................................................................................... 26 開倉檢查及換刀 ............................................................................................................. 26 7 監(jiān)測措施 .......................................................................................................................... 27 8盾 構(gòu)下穿珠江段施工常見問題及處理措施 ......................................................................... 28 盾構(gòu)機(jī)密封性能不良 的問題及處理措施 ........................................................................ 28 “結(jié)泥餅”現(xiàn)象的處理 ................................................................................................. 29 螺旋機(jī)“噴涌” 現(xiàn)象的處理 .......................................................................................... 29 江底塌方 現(xiàn)象的 預(yù)防 及 處理 .......................................................................................... 30 ........................................................................................... 30 9 質(zhì)量、安全保證措施 ..................................................
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