ABSTRACT
In this paper, slope stability engineering is regarded as a grey system. Based on site investigation data of T slope, the grey cluster method in the grey system theory is adopted to determine major factors (cluster indexes) influencing stability of slope. The standard weight and actual weight are calculated. The cluster vector is constructed. Finally the greatest element among cluster vectors is found according to the principle of selecting maximum, after which the stability class of the T slope (after reinforcement, very stable) is determined. The studied result agrees with in situ material.
