煤与瓦斯突出危险性的灰色综合评价

Risk analysis of coal and gas outburst using gray comprehensive evaluation

为了降低煤与瓦斯突出事故的危险性问题,采用灰色综合评价的方法,对煤矿井下不同地点的突出危险性进行了综合评价.结果表明:瓦斯压力、瓦斯放散初速度、煤的坚固性系数和煤的破坏类型可以作为反映煤与瓦斯突出危险的主要指标.依据灰色综合评价的方法,对煤矿井下不同地点的煤与瓦斯突出的危险性进行了排序.该成果对煤矿井下突出事故的防治提供了方向,对于提高煤矿的安全管理水平,预测和防治煤与瓦斯突出事故的发生具有一定的参考价值和指导意义.

To reduce the risk of coal and gas outburst hazard,this study evaluates the risk of coal and gas outburst at various sites in an underground coal mine using gray comprehensive evaluation method.The evaluation demonstrates that gas pressure,initial speed of methane diffusion,coal consistent coefficient,and coal destruction type can be regarded as main indexes to describe the risk of coal and gas outburst.Using the gray comprehensive evaluation method,the study orders the risk of outburst hazard at various locations in an underground coal mine.The study outcome provides a direction for preventing and controlling coal and gas outburst in underground coal mines,and also provides valuable preference to improve coal mine safety management.