Safety evaluation of mine roof accident based on grey fuzzy comprehensive evaluation

By analyzing the risk assessment methods of roof accidents at home and abroad, this paper summarizes research status in area, analyzes significance mine accidents. The identification roadway collapse accident is carried out from four aspects -- human, material, environment, management, evaluation index system established, including human unsafe behavior, material state, management factors environmental factors. On basis, weight set determined by grey relation analysis, fuzzy comprehensive model obtained combining method. Taking a coal as an example, makes empirical study puts forward corresponding countermeasures according to results assessment. show that safety level very safe, so it feasible use method evaluate mine, which can provide reference for same kind mine.