基于“三率法”对突出敏感指标及其临界值的确定  

Determination of Outburst Sensitivity Index and its critical value based on the “three rate”

作　　者：谷守生 

机构地区：[1]山西和顺天池能源有限责任公司,山西晋中032700

出　　处：《内蒙古煤炭经济》2014年第6期135-136,共2页Inner Mongolia Coal Economy

摘　　要：为确定煤层的突出危险性,在对天池1150掘进考察区的突出预测敏感指标考察过程中,采用"三率法"对1150掘进考察区的突出预测敏感指标及其临界值进行研究分析,结果表明:煤层钻屑量指标S为突出预测不敏感指标,钻屑瓦斯解吸指标Δh2和K1为突出预测敏感指标,而且指标Δh2的敏感程度大于K1,Δh2=200为主要预测指标临界值,K1=0.5为辅助预测指标临界值,任何一个预测指标达到或超过临界值均视为具有突出危险。In order to determine the outburst risk of coal seam, using the three rate method to research and analysis outburst prediction sensitive indicators and the thresholds of the 1150 excavation area in the process of inspecting the outburst prediction sensitive indicators in the 1150 excavation. The results show that the amount of coal cuttings index S is not the outburst prediction sensitive Index, and gas desorption In- dex of coal cuttings as well as kl are outburst prediction sensitive indice ors. The sensitivity of the index is greater than kl. equals to 200is the main predictor of the critical value and kl equals to 0.5 is the auxiliary prediction of critical value, which would be considered to exist outburst if either predictor reaches or exceeds the threshold.

关 键 词：三率法 突出 预测指标 敏感性 临界值 

分 类 号：TD713.2[矿业工程—矿井通风与安全]