冰水沉积层隧道超前帷幕注浆施工技术应用探讨

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摘  要：超前帷幕注浆堵水是隧道过富水围岩安全施工保证的重要手段。该文以川藏铁路某隧道过冰水沉积层段为例，详细介绍超前帷幕注浆堵水施工的整体施工方法和具体操作，对注浆效果进行简单评价。基于此，提出针对超前帷幕注浆施工技术的个人见解，以便为类似工程施工提供一定的借鉴和成功经验。

关键词：隧道；冰水沉积层；超前帷幕注浆；堵水；铁路施工

中图分类号：U455      文献标志码：A          文章编号：2095-2945（2023）10-0164-04

Abstract： Water plugging by advanced curtain grouting is an important means to ensure the safe construction of water-rich surrounding rock of the tunnel. Taking the ice-water deposition section of a tunnel of Sichuan-Tibet Railway as an example， this paper introduces in detail the overall construction method and concrete operation of leading curtain grouting water plugging construction， and simply evaluates the grouting effect. Thus， some suggestions on the construction technology of advanced curtain grouting are put forward， in order to provide some reference and successful experience for the construction of similar projects.

Keywords： tunnel; ice-water deposit; advanced curtain grouting; water plugging; railway construction

隧道作为铁路网施工中主体结构之一，对缩短线路距离、改善运行条件等都具有突出作用。（剩余5035字）