Application of analytical hierarchy method (AHP) and fuzzy theory in selecting methods for mining of medium-thick steep coal seames

Abstract

Hierarchical analysis and fuzzy theory are used to optimize mining methods and select the most optimal mining method suitable to the conditions of the coal mine. First, through analysis of coal mine documents, methods can be applied to exploit steep, medium-thick coal seams; Second, apply the hierarchical analysis method to establish a hierarchical analysis model of the main factors affecting the mining method and determine the weight of each index; Finally, based on fuzzy set theory, synthesize judgments and evaluate to determine the most optimal method to exploit steep, medium-thick coal seams..