煤矿现代化
煤礦現代化
매광현대화
COAL MINE MODERNIZATION
2013年
1期
69-71
,共3页
煤与瓦斯突出%敏感指标%临界值
煤與瓦斯突齣%敏感指標%臨界值
매여와사돌출%민감지표%림계치
coal and gas outburst%sensitive index%critical value
从预测指标主要反映指标与突出主控因素一致,指标测值随工作面突出危险大小有明显变化两个方面定性分析,并应用“三率”分析法,确定钻孔瓦斯涌出初速度 q 和钻屑量 S 为宣东二矿Ⅲ3煤层三采区的敏感指标.通过对 q 值和 S 值设定不同临界值进行“三率”分析,确定钻孔瓦斯涌出初速度 q 临界值为5.0L /min,钻屑量 S 临界值为5.1kg.
從預測指標主要反映指標與突齣主控因素一緻,指標測值隨工作麵突齣危險大小有明顯變化兩箇方麵定性分析,併應用“三率”分析法,確定鑽孔瓦斯湧齣初速度 q 和鑽屑量 S 為宣東二礦Ⅲ3煤層三採區的敏感指標.通過對 q 值和 S 值設定不同臨界值進行“三率”分析,確定鑽孔瓦斯湧齣初速度 q 臨界值為5.0L /min,鑽屑量 S 臨界值為5.1kg.
종예측지표주요반영지표여돌출주공인소일치,지표측치수공작면돌출위험대소유명현변화량개방면정성분석,병응용“삼솔”분석법,학정찬공와사용출초속도 q 화찬설량 S 위선동이광Ⅲ3매층삼채구적민감지표.통과대 q 치화 S 치설정불동림계치진행“삼솔”분석,학정찬공와사용출초속도 q 림계치위5.0L /min,찬설량 S 림계치위5.1kg.
From the qualitative analysis in two aspects which main reflecting indicators of predictive index is consistent main controlling fac-tors of outburst and Index value with face outburst dangerous size has a significant change, and application of " three rate" analysis method, determine drilling gas inrush initial velocity q and drilling cuttings weight S as the Sensitivity Index of area of three of Ⅲ3 coal seam in Xuan-dong no.two mine. Based on the " three rate" analysis of q and S with different hypothetical critical value, determine the critical value of drilling gas inrush initial velocity q is 5L/min and the critical value of drilling cuttings weight S is 5.1Kg .
