关键词:  矿山, 崩塌, 层次分析, 模糊综合评判, 危险性区划

Abstract: Based on the comprehensive analysis on geological conditions of Zhaoxiangyu Luanshigou in western Henan,this paper proposed the major factors for mine rock fall disaster,including joint development condition,terrain slope,empty condition and mining excavation.tilizing the spatial analysis function of GIS,the map of each factor is rasterized by 1 mm×1 mm (practical size of the raster is 10 m×10 m) square grid.he prediction index is selected and the state of index is divided according to the distribution of each factor.nalytic hierarchy process (AHP) model is used to establish evaluation index system of collapse hazard zonation and calculate the weight of these factors and then obtained the risk comprehensive evaluation score of each collapse in the study area by fuzzy comprehensive evaluation(FCE).inally,a mathematical model based on AHP and FCE is established for collapse risk evaluation.n this basis,the collapse risk division for Zhaoxiangyu Luanshi gully is carried out and the result can guide mining activities and provide basis for land planning to make disaster prevention and reduction of government be more pertinent.

Key words: Mine, Collapse, AHP, FCE, Hazard zonation