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Fuzzy comprehensive evaluation on the spontaneous combustion in goaf and its application

CHU Ting-xiang,YANG Sheng-qiang,LIU Guo-zhong, SUN Yan,WANG Cheng(School of Mining and Safety Engineering,Cumt,Xuzhou 221008,China)  
There are many factors influencing spontaneous combustion in goaf, and their relative essentialities are different. The goaf is a dynamic and complex diversification process along with the working-face removing .The article established the system of safety index on spontaneous combustion in goaf by analyzing the relative factors, then estimate the risk of Spontaneous combustion in goaf by the theory of the fuzzy math, mastered the possibility and the safety condition of spontaneous combustion, and supported the academic references to constitute the measures which can be betimes and to availably prevent the spontaneous combustion. In the end taking the 1302 working-face as an example by making use of fuzzy comprehensive evaluation, the obtained results were consistent with the praciical condition. It is confimed that the fuzzy comprehensive evaluation on spontaneous combustion in goaf is feasible.
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