Abstract: Bedding rock slope is a typical rock mass structure which influences the stability of engineering rock mass and leads to geological hazards. Several methods of slope stability analysis,namely,Sarma Method,Imbalance Thrust Force Method,and Linear Sliding Surface Method,are compared in this paper. With the bedding rock slope at the bridge foundation of Shujiacao Bridge of Yichang-Badong Highway as an example,the rock slope stability was analyzed by these three methods. The analyzed results were compared with the actual rock mass structure and damage of this bedding rock slope. The comparison shows that the result by Sarma method consists well with the actual situation of slope failure,it is more suitable for analyzing bedding rock slope with joint fissures; whereas the calculation result of Imbalance Thrust Force Method is larger,and Linear Sliding Surface Method is conservative and smaller.

Key words: bedding rock slope, Sarma method, imbalance thrust force method, linear sliding surface method, slope stability assessment