中文摘要：

目的针对陕北某输油站的地面裂缝,分析其形成原因,评价场地的稳定性,并提出治理措施。方法采用详细的现场勘察,分析站场的地质环境条件及地面开裂的初步原因,运用有限元强度折减法对站场的稳定性进行计算。结果站场内外发育有连续性较好的裂缝5条,其产生的原因主要为：由黄土层的披覆构造特点及红黏土层的隔水特性而引起的坡体顺层面蠕动;填土区滑坡而引起的后缘张裂缝;土体不均匀沉降。结论该站场裂缝目前还在继续发展变化,随时有形成地质灾害的可能,因此,应根据情况及早进行相应的治理设计与施工。

英文摘要：

Aim To analyse the causes of the ground cracks of a certain oil transportation station in Northern Shaanxi,to evaluate the stability of the project site,and to put forward countermeasures.Methods Firstly systematic investigations were carried on to analyse the geologic environment of the oil transportation station and the preliminary causes of the ground cracks were put forward.Then the strength reduction method was used to calculate the stability of the project site.Results There are five cracks that bear clear continuity in the oil transprtation station.The causes of the cracks are reduced to three factors： creep sliding of the slope was caused by the draping structure of the loess and the water-resisting characteristic of the red clay layer,tension fissure on the trailing edge was caused by the sliding failure of the filling slope and uneven subsidence of the filled soil.Conclusion The cracks in the oil transportation station continues to change and develop at present.Geological disastor may occur at any time.So a scheme to prevent and cure the geological disastor must be put forward as quickly as possible.