铁路隧道二次衬砌施工技术及常见问题处理方法分析

Analysis of Secondary Lining Construction Technology and Common Problem Treatment Methods of Railway Tunnel

对铁路隧道二次衬砌施工准备工作中的原材料控制,机械设备参数、性能确定,支护检查,施工方案制订等进行了总结,并对铁路隧道二次衬砌施工中的衬砌混凝土分段浇筑、浇筑拆模、保养及回填技术、拱顶衬砌混凝土施工、二次衬砌环向中埋式止水带施工等施工工艺和施工方法进行了分析,最后对常见的错台、蜂窝、二衬背后脱空等问题及处理方法进行了分析,从而有效地提高铁路隧道施工中二次衬砌的质量。

This paper summarizes the raw material control,mechanical equipment parameters,performance determination,support inspection,construction plan formulation,etc. In the secondary lining construction preparation of railway tunnels,and segmentes the lining concrete in the secondary lining construction of railway tunnels. Construction techniques and construction methods such as pouring,pouring demoulding,maintenance and backfilling technology,arch lining concrete construction,secondary lining ring to buried waterstop construction,etc.,and finally common misplaced,honeycomb,and second lining. The problems such as the void behind and the treatment methods were analyzed to effectively improve the quality of the secondary lining in the construction of railway tunnels.