义安矿掘进工作面煤与瓦斯突出预测指标研究

Research on Coal and Gas Outburst Prediction Index in Heading Face of Yian Coal Mine

针对义安矿近年来煤层煤与瓦斯突出问题,综合统计分析了掘进工作面突出预测指标:钻屑量指标S、钻孔瓦斯涌出初速度q和钻屑瓦斯解析指标Δh2,运用数学建模思想,并结合标准差和模糊优先关系排序决策,确定了义安矿煤层掘进工作面的突出预测敏感指标为q和Δh2,该结论可指导该矿的防突工作,意义重大、影响深远。

In connection with the coal and gas outburst problem in coal seam of Yian coal mine in recent years,comprehensively counted and analyzed the forecasting index of heading face outburst namely drilling cuttings volume index S, drilling gas inrush initial velocity q and gas desorption index of drill cuttings △h2. Using the ideas of the mathematical model, and combined with standard deviation and fuzzy priority sorting decision, makes sure the outburst prediction sensitive indexes is q and △h2 of heading face in coal seam of Yian coal mine. This conclusion can guide prevention outburst in the mine, is of great significance and far - reaching influence.