【正文】 ...........................................................................................................7 設(shè)備及人力計劃 ...............................................................................................................8 進(jìn)場設(shè)備計劃 .........................................................................................................8 勞動力配置計劃 ......................................................................................................8 地連墻材料計劃 ......................................................................................................9 施工場地布置 .........................................................................................................9 泥漿系統(tǒng) ................................................................................................................9 四、施工方法 .............................................................................................................................. 10 地連墻施工方法 ............................................................................................................. 10 地下連續(xù)墻施工流程及說明 .................................................................................. 10 導(dǎo)墻施工 .............................................................................................................. 12 泥漿護(hù)壁 .............................................................................................................. 14 成槽施工 .............................................................................................................. 18 槽段劃分 .............................................................................................................. 21 清底 ..................................................................................................................... 22 成槽驗收 .............................................................................................................. 23 鋼筋籠制作及吊放 .......................................................................................................... 23 鋼筋籠的制作 ....................................................................................................... 23 地連墻鋼筋籠加工制作六大“工序驗收”法 .......................................................... 26 吊裝 ..................................................................................................................... 26 混凝土澆注 .................................................................................................................... 26 導(dǎo)管布置 .............................................................................................................. 27 混凝土灌注 ........................................................................................................... 27 墻 趾注漿 ........................................................................................................................ 28 預(yù)埋注漿管 ........................................................................................................... 28 注漿材料 .............................................................................................................. 28 注漿壓力 .............................................................................................................. 28 注漿流量 .............................................................................................................. 28 五、絞吸式地連墻 ....................................................................................................................... 29 絞吸式地連墻施工工藝 ................................................................................................... 29 泥漿攪拌 ........................................................................................................................ 31 成槽 ............................................................................................................................... 31 修槽 ............................................................................................................................... 33 清槽換漿 ........................................................................................................................ 33 鋼筋籠加工與安裝 .......................................................................................................... 34 地鐵 6 號線土建施工地下連續(xù)墻施工方案 2 混凝土灌注 .................................................................................................................... 34 六、注意事項 .............................................................................................................................. 35 控制成槽深度 ................................................................................................................. 35 砼澆注 ........................................................................................................................... 35 七、地連墻施工易出現(xiàn)的問題、原因分析及預(yù)防、治理措施 ........................................................ 35 導(dǎo)墻變形破壞 ................................................................................................................. 35 槽內(nèi)泥漿泄漏 ................................................................................................................. 36 槽壁失穩(wěn) ........................................................................................................................ 37 挖槽機卡在槽內(nèi) ............................................................................................................. 38 成槽偏斜 ........................................................................................................................ 40 導(dǎo)管滲漏 ........................................................................................................................ 40 脫管 ............................................................................................................................... 41 堵