长管棚法处理隧道重大坍方技术

The tunnel significant fall-in treatment technology with long pipe roof method

结合具体工程实例,分析了隧道的施工情况和坍方过程,提出了隧道坍方处理方案,详细地介绍了隧道坍方的处理方法,通过对施工质量和效果评定表明管棚与注浆结合体形成了良好的棚架,最终安全地通过了坍方地段。

Combined with specific engineering example, the tunnel construction situation and fall-in process were analyzed, and the tunnel fallin treament planning was protposed. The tunnel fall-in treatment method was detail introduced. The construction quality and effect evaluation indicated that pipe roof combination with grouting forming better ladder, and safely passed fall-in section.