摘要
提出了矿井瓦斯预测的定量评价方法,建立了影响矿井瓦斯突出的评价指标体系,包括矿井通风量、煤层瓦斯压力、瓦斯气体浓度、瓦斯涌出速度、开采深度和煤的坚固性系数。采用模糊数学综合评价方法对焦作九里山煤矿进行了综合评价研究,通过隶属函数并结合专家打分获得各个因素的评价矩阵,结合信息熵法获得研究区的瓦斯突出危险性等级。
The quantitative evaluation of mine gas prediction was proposed, and the evalua- tion index system of mine gas outburst was established, including mine ventilation rate, coal seam gas pressure, gas concentration, gas emission rate, mining depth and the firmness coeffi- cient of coal. Using fuzzy mathematics comprehensive evaluation method, Jiaozuo Jiulishan Coal Mine was evaluated overall. Through membership function and the expert scoring, the evaluation matrix for each factor was obtained. Combined with the information entropy method, the risk level of gas outburst in the studying area is medium.
出处
《中国煤炭》
北大核心
2014年第5期126-129,共4页
China Coal
关键词
熵
瓦斯预测
瓦斯突出
评价指标体系
模糊数学
危险性等级
entropy, gas forecast, gas outburst, assessment indicator system, fuzzy mathe-matics, risk level of gas outburst
