新奥法在十八盘隧道工程中的应用

The application of new austrian tunneling method in the project of Shi Ba Pan tunnel

简要介绍了新奥法的施工原理,主要论述了该方法在软岩隧道的应用原理,通过对围岩的合理分级,详述了每一级别围岩的具体施工原理以及其具体的施工操作方法,严格按照早喷锚、快支护的原则,确保软岩隧道施工的正常进行,并结合十八盘隧道工程实例,根据实际工程地质情况阐述了隧道的开挖、初期支护、衬砌的施工方法,合理准确地解决隧道施工中存在的问题,以取得良好的社会和经济效益。

This paper briefly introduces the construction principle of the new Austrian method, and combined with Shi Ba Pan tunnel project as an example, mainly discusses the application of this meth od in soft rock tunnel,Through the rational classification of surrounding rock in detail the principle of the concrete construction of every level of surrounding rock and its specific operation methods, strictly according to the principle of early spray anchor fast support, to ensure the normal conduct of soft rock tunnel construction and according to the practical engineering geological conditions of tunnel excava- tion, early bolting, lining construction method, reasonably and accurately solve the problems existing in the tunnel construction, in order to obtain good social and economic benefits.