Based on the analysis of the instability disaster influencing factors of slope, medium unit weight, cohesion, internal friction angle, slope angle, slope height and pore pressure ratio were selected as the prediction indexes. The theory of the rough set and catastrophe progression method were integrated into a model to establish the instability disaster prediction model slope. Firstly, the rough set theory was used for the decision table creation, data mining, attribution importance ranking and reduction; then as the outputs processed by rough set theory, the table was put into the catastrophe...
