复杂地质条件下大规模隧道群危险源辨识分析

Analysis of Hazard Source Identification for Large-scale Tunnel Group under Complicated Geological Conditions

依托四川西部山区高速公路大规模隧道群,通过对隧道的自身结构与工程地质条件的研究,并结合隧道施工过程中所遭遇的岩爆、软岩大变形、涌水突泥、瓦斯突出等灾害的发生机理,对以高地应力、软弱围岩、高地震烈度、断层破碎带、高压富水等为代表的潜在危险源进行了辨识分析,得到了相应的结论。

The large-scale tunnel group on the highways in the west Sichuan was taken as the background herein to study the own structure of tunnel and the engineering geological conditions,and then combined with the mechanism of disasters occurring in the tunneling,such as rock burst,large deformation of soft rock,water inflow and mud breakout,and gas outburst,the potential sources of hazard were identified and the corresponding conckysion is obtained.