Abstract:Based on the matter-element model and the classified analysis method,an extension classification prediction method for the stability of rock-mass slopes is proposed. In the method,the stability types and the influence factors on rock-mass slopes are used to set up the classical and limited matter elements. A simple forecasting model of the stabilyty types of rock-mass slopes is established by applying the correlated functions of matter elements and extension sets. The predicting results of the stability of rock-mass slopes are obtained by applying the classified analysis. The analyzing results of an example show that the proposed method is available.