隧道设计施工理念对衬砌的影响分析

Analysis of the impact posed by construction concepts of tunnel design on lining

本文通过对向阳隧道和八一隧道分别采用传统矿山法和新奥法进行数值模拟,计算结果表明,由于传统矿山法和新奥法的理念不同,用传统矿山法设计施工,造成二次衬砌局部应力集中,二次衬砌应力较新奥法大,由此证明新奥法是目前较合理的隧道工程设计施工理念。

In this thesis,the author demonstrates that the new Austrian tunneling method is a comparatively reasonable design and construction conception in tunnel project by doing numerical simulation on the traditional mine tunneling method and the new Austrian tunneling method,respectively used in Xiangyang tunnel and Bayi tunnel,with the result that the design and construction of traditional mine tunneling method cause partial stress concentration of the second lining and the stress is greater compared with those of new Austrian tunneling method.