G314线奥依塔克－布伦口段地处高寒、高海拔、高烈度的“三高”地区，崩塌灾害频发，严重影响了公路的正常运营和人民生命财产安全。为了研究该区域崩塌的发育规律，对研究区的崩塌灾害进行了实地调查。在总结分析研究区域的地质环境条件对沿线崩塌发育的影响基础上，分析了沿线崩塌灾害的空间分布特征，并且进一步研究了坡度、坡高、坡形及岩性等基础因子对崩塌发育的影响，从而总结出沿线崩塌灾害的发育规律。同时，据实地调查分析，沿线崩塌体的失稳模式主要有空间滑移模式、拉裂－错落模式、倾倒－拉裂模式、倾倒－折断模式及整体滑移模式五种。%Oytag-Bulunkou section of China national highway 314 is located in the “Three High”area,namely high cold,high altitude and high intensity.The frequent collapse hazards seriously threaten both the normal operation of the highway and the safety of people's life and property.In order to study the development rules of collapses in this regional,this paper conducts a field survey for collapse hazards in the study area.Based on exploring the effects on the development of the collapse from regional geological environmental conditions,this paper analyzes the spatial distribution characteristic of the collapse hazards along the road,and further studies factors,such as the gradient,the height,the shape and the lithology of the slope,which affect the development of the collapse,and finally obtains the development regularity of the collapse hazards along the road.According to the field survey,the failure mode of the collapsed bodies are mainly space-sliding,fracturing-scattered,dumping-fracturing,dumping-breaking and integral sliding along the road.
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