砾岩隧洞的长期稳定性分析

本文首先研究某工程泥质砾岩扰动样的流变、渗透和浸水软化特性，然后，简要介绍泥质砾岩隧洞的施工方法和支护形式并根据材料特性，模拟施工过程，湿化饱和过程和钢筋混凝土瓦片形衬砌的结构形式，分析了围岩和衬砌的应力及变形，探讨了浸水软化对围岩长期稳定性的影响和失稳机制。

Long-term Stability Analysis of the Tunnel in Conglomerate

The creep, permeability and softening associated with ingress of moisture for the rammed conglomerate sample have been studied in this paper firstly. Then, the construction method and support works for the tunnel in conglomerate h'ave been introduced briefly. Finally, the stress and deformation of the tunnel lining and surrounding rock have been analysed according to the conglomerate property, construction procedure and structure form of tunnel lining, and the influence of the softening associated with ingress of moisture upon the long-term stability and the mechanism of failure for the tunnel have been researched.