论文部分内容阅读
通过现场考察以及事故分析,确定了煤与瓦斯突出的预警指标集,并采用层次分析法确定各指标的权重,以关联函数作为计算模型,建立可拓预警模型。以新集一矿11_(-2)煤层为例,将现场数据代入模型得出预警等级。结果表明:该模型在计算时可直接将现场数据代入,计算方便;而且得出的单指标预警等级与相关单位对煤层突出鉴定相符合,综合预警等级又与实际情况相符合。
Through on-the-spot investigation and accident analysis, the early-warning indicator set of coal and gas outburst was determined, and the weight of each index was determined by AHP. The correlation function was used as the calculation model to establish the extension warning model. Taking the 11_ (-2) seam in Xinji No.1 Mine as an example, the on-site data is substituted into the model to obtain the warning level. The results show that the model can directly substitute on-site data into the calculation, and the calculation is convenient. Moreover, the single-index warning level obtained by the model is consistent with the relevant unit’s appraisal of the coal seam’s prominence, and the comprehensive warning level is in line with the actual situation.