渝利高速铁路线址经过边坡所发育的危岩体成为铁路施工及运行的安全隐患。本文通过详细勘查危岩体边坡的变形破坏迹象发现,该地区危岩体的发育机制具有明显的链式规律。根据这一原理,分析了影响危岩形成的主要因素和过程。并以五龙场隧道入口边坡危岩体为例,对危岩体进行稳定性分析和评价。 Yu-li high-speed railway line site after the slope of the development of dangerous rock mass railway construction and operation of the security risks. In this paper, by means of detailed exploration of deformation and failure signs of dangerous rock slope, it is found that the development mechanism of dangerous rock mass in this area has obvious chain rule. According to this principle, the main factors and processes that affect the formation of dangerous rock are analyzed. Taking the dangerous rock mass at the entrance of Wulongchang tunnel as an example, the stability analysis and evaluation of the dangerous rock mass are carried out.