模糊综合评判法判定煤矿瓦斯的安全度

Fuzzy comprehensive evaluation method is used to determine the mine gas safety degree

使用模糊综合评判模型确定矿井安全度,以矿井各作业面和巷道安全性作为一级因素,以不同时段的安全性作为二级因素;根据历史统计资料,合理确定权重集;利用统计方法分析矿井瓦斯浓度和煤尘浓度分布,确定了隶属系数和评判矩阵。并且用此模型准确地评价了煤矿掘进工作面、采煤工作面以及回风巷和整个矿井综合的安全程度,对煤矿安全检测和控制具有较高的理论和实践指导意义。

The fuzzy comprehensive evaluation model is used to determine the mine safety degree, with each working face and roadway safety as the primary elements and the safety in different periods as the secondary elements based on historical statistics data, the weight set is determined reasonably mine gas concentration and coal dust concentration distribution are analyzed by using statistical methods, and the membership coefficient and the evaluation matrix are defined. This model is also used to accurately evaluate the comprehensive safety degree of mine heading face, mining face, return air roadway and the whole coal mine, and it has great theoretical and practical guiding meaning for the coal mine safety monitoring and controlling.