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中文摘要：
为探索判断煤自燃的危险性新方法，在煤低温氧化试验的基础上，基于可拓理论构建了煤自燃危险性熵权和经验权的物元综合分析模型。采用该方法对4个不同煤样低温氧化试验数据进行自燃危险性分析，得出各煤样自燃危险性的等级及差异程度，并提出相应的防范对策。结果表明：4号煤样比其他煤样更具自燃危险性，需要重点防范。该方法的预测结果与实际情况相吻合。
英文摘要：
In order to explore a new judgment method for coal spontaneous combustion risk, a matter-el- ement comprehensive analysis model for the entropy weight and experience weight of coal spontaneous combustion risk was built on the basis of low temperature oxidation experiment and extension theory. Experimental data of four different coal samples were used to make an analysis of spontaneous combustion risk ; the risk level and difference degree of four samples were gotten, and some corresponding prevention measures were put forward. The results show that the coal spontaneous combustion risk of NO. 4 coal is more dangerous than the others, which should be taken as a key prevention target. The forecasting result by proposed model is consistent with the actual situation.
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Numerical investigation and theoretical prediction of self-ignition characteristics of coarse coal s
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