基于未确知测度的综放面自然发火危险性评价

根据防灭火经验和峁底矿实际情况遴选出煤层赋存地质构造、工作面淋水情况、工作面周围开采情况、煤层埋深、围岩温度、工作面回采率等16个评价影响因素,构建了工作面自然发火危险性评价模型,通过各评价因素的隶属度函数确定其单指标测度,利用未知测度理论对模型进行解算,结果发现,工作面在淋水较大和较小情况下的自燃发火危险性程度均为＂高＂级,采煤过程中有较大淋水时,能够降低工作面火灾的危险性。

Spontaneous Combustion Risk Assessment Based on Unascertained Measure of Fully Comprehensive Caving Face

According to the fire fighting experience and selected Maodi Mine actual situation of coal seam geology structure, drench water of coal face, around working face mining situation, the depth of coal seam, surrounding rock temperature, mining rate of working face 16 evaluation factors, the spontaneous combustion risk assessment model was established, by the membership function of each evaluation factor to determine its single index measure, by unknown measure theory calculated the model, the results showed that working face in larger and smaller drench water cases of spontaneous combustion risk degree were ＂high＂ level, in the process of coal mining had a larger water spray, can reduce face the danger of fire.