古尔沟隧道出口崩塌危岩体稳定性分析与治理措施

崩塌落石是山区常见的地质灾害之一。汶马高速公路沿线两侧山体发育大量的危岩体，崩落后对路线施工和运营安全造成影响。对此，通过古尔沟隧道出口崩塌实例，对危岩的特征、形成机制、影响因素和稳定性进行分析，并采用相应的综合治理措施，治理效果明显，已投入正常运营。

Stability Analysis and Treatment Measures of Collapse Dangerous Rock Mass at Exit of Guergou Tunnel

Rock collapse is one of the common geological disasters in mountainous areas. There are a lot of dangerous rocks on both sides of the mountain along Wenma expressway, which will cause effect on the construction and operation safety of the route after collapse. Hence, through the analysis of the characteristics, formation mechanism, influencing factors and stability of the collapse rock at the exit of Guergou tunnel, the corresponding comprehensive treatment measures are adopted for the collapse rock, with obvious treatment effect and it has been put into normal operation.