义安矿掘进工作面煤与瓦斯突出预测敏感指标的确定

煤与瓦斯突出危险性预测是防治煤与瓦斯突出的关键环节,瓦斯突出预测的核心又是预测指标的敏感程度问题。为了预测义安矿掘进工作面煤与瓦斯突出危险性,深入分析了突出预测指标的性质和适用条件,并统计分析了掘进工作面突出预测指标区间分布特征和突出预测指标的影响因素,同时结合标准差和模糊优先关系排序决策,最终确定义安矿二1煤层掘进工作面现有突出预测敏感指标为q和△h2。

Sensitive Index Determination for Coal and Gas Outburst Prediction on Drivage Face of Yian Coal Mine

Risk prediction of coal and gas outburst is the key for controlling coal and gas outburst.The core of coal and gas outburst prediction is sensitivity of predictive index.In order to predict coal and gas outburst risk at drivage face of Yian mine,This paper studied the nature and application conditions of outburst prediction index,and statistical analyzed the interval distribution characteristics of outburst prediction index at drivage face and influencing factor of outburst prediction index.Combined with standard deviation and fuzzy prior relation decision,the outburst prediction sensitive index q andΔh2,were determined ultimately at drivage face of Yian coal mine.