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阐述了基于滑坡物质组成及滑面的发育位置和运动方式两种划分黄土滑坡的形式。根据两种分类形式,通过现场勘察对青(岛)兰(州)公路陕西境滑坡发育密集的K103~K113段30个滑坡进行了分析研究,认为沿线黄土滑坡属黄土-第三系红粘土-泥岩接触面滑坡,部分兼黄土-泥岩滑坡类型,并归纳了滑坡的几点活动特征。最后以地质分析为基础,得出了沿线黄土滑坡的破坏模式为滑移-拉裂-剪切型,地下水及地表水是滑坡活动的诱发因素也是主要因素。
The form of loess landslide based on the composition of landslide and the developmental position and movement mode of the landslide is elaborated. According to the two types of classification, 30 landslides in K103 ~ K113 with intensive development of Shaanxi Landslide on Qinghai (Island) Lanzhou Highway were analyzed by on-site investigation. It is concluded that the loess landslides along the line are the loess-Tertiary red clay- Mudstone contact surface landslide, some of the loess - mudstone landslide types, and summed up the activities of the landslide characteristics. Finally, on the basis of geological analysis, it is concluded that the failure modes of loess landslides along the line are slip-pull-shear type, groundwater and surface water are the inducing factors and also the main factors.