Comprehensive evaluation of fully mechanized mining face security based on unascertained - Information entropy model

Under the fully mechanized coal mining face contains many security features of unascertained, in this paper, the selection of the most able to face the impact of the safety of people, machines, and environmental factors as the evaluation index. Secondly, the definition of the unascertained measure indicators, and indicators of human, machine and environment factors in the security grading of the role of the size of the index´s categorization weight. Thirdly, the unascertained security comprehensive assessment system is established based on the man-machine-environment factors. Fourth, the use of information entropy calculation, and machine, of environmental factors on the safety of fully mechanized coal mining face classification attribute weights. Fifth, the establishment of a comprehensive evaluation unascertained system and the information entropy of combining fully mechanized coal mining face security evaluation model. Finally application of the model shows that the accuracy and applicability.