Abstract:The structural plane effect on the deformation and failure of the Heifangtai tableland slope has been well studied; however, such studies mainly focus on a single side, and only few systematic studies have been conducted. Therefore, based on the analysis of the structural plane types and the combination characteristics, the deformation and failure types, and the characteristics of the slope, in this work, it was found that the structural surface types in the study area mainly include joint fissures, layers, interfaces, faults, and free face; the combination types of structural planes are divided into two classes and eight subclasses, and each type has its own structural characteristics and distribution characteristics. The slope deformation and failure types and the spatial distribution selection of Heifangtai tableland slopes are significantly affected by the structural planes and their combination.