Based on catastrophe theory,catastrophe progression method for evaluation of Karst collapse risks was presented.Ac-cording to the previous researches,five main factors including soil shearing strength parameter such as cohesion and internal fric-tion angle,difference of cover thickness and high buried depth of groundwater and difference of cover thickness and low buried depth of groundwater were selected as discrimination factors of Karst collapse risks evaluation.Fifteen actual samples of Karst collapse were taken as the training samples,and the catastrophe progression model and the recogniti...
