Realization and engineering application of classification of coal roof stability.

The present classifications of coal roof stability have many problems, such as large amount of calculation, too much human labor and low degree of intelligence, which cannot provide guidance for mine production. Based on the real situation in coal mine, authors gave determining factors to coal roof stability. Using Analytic Hierarchy Process and Fuzzy Clustering Method as its core, established the coal seam roof stability hierarchical analysis model and concluded the membership of the influence factors and synthetic operation method. With Visual Basic 6. 0 for compilation environment, used Matlab and Surfer to make secondary mixed programming, Analysed the drilling data and geological data and draw partition map of coal roof stability to form partition system. Applied the research results to No. 3 coal seam of Hexi Coal Mine and validated the prediction by observing the drilling. [ABSTRACT FROM AUTHOR]