作　　者： (何珊）;

机构地区： 中国铁建股份有限公司,北京100855

出　　处： 《铁道建筑技术》 2017年第8期58-62,共5页

摘　　要： 结合老城区地铁施工中主干排水片石箱涵与新建钢筋混凝土箱涵对接施工,介绍了既有两孔4 m×4 m片石砌筑暗渠与新建钢筋混凝土箱涵改移对接施工中开挖支护、止水、导流、通风、对接、注浆封堵等技术要点和注意事项,可为今后同类型施工积累经验。 Combined with the docking construction between the rubble culvert in main drainage channel and the new reinforced concrete box culvert during the metro construction in the old town,this paper introduced the technical points and precautions on excavation supporting,sealing,diversion,ventilation,docking and grouting in the relocation and docking construction between the existing two holes 4 × 4 m rubble masonry culvert and the new reinforced concrete box culvert. It could gather experience for same type of construction in the future.

关 键 词： 片石箱涵 主干排水 对接 渗漏水