摘要
论述了突出预测敏感指标及其临界值的概念、判断原则和确定方法,结合大湾矿的实践,介绍了一种集历史资料统计、实验室和现场试验相结合的突出预测敏感指标及其临界值的确定过程、步骤和方法,对钻屑瓦斯解吸指标K1、钻孔瓦斯涌出初速度及其衰减指标、钻粉量、炮后30 min吨煤瓦斯涌出量指标V30和综合指标R的敏感性进行了考察,并在此基础上研究和确定了K1指标和V30指标的临界值。
This paper discussed the concept of the sensitivity index and its critical value for outburst prediction, the judgment principle and the determination method, and described a determination process, procedure and method for sensitivity index and its critical value of outburst prediction according to the historical data statistics, laboratory experiment and site test. Investigation was made on the gas desorption index K1 of drill cuttings, the initial velocity of gas emission from holes and its attenuation index, the quantity of drill cuttings, the gas emission index per ton V30 in 30 min after shotfiring as well as the sensitivity of the integrated index R, on this study basis, the critical values of both index K, and V30 were thus determined.
出处
《矿业安全与环保》
北大核心
2007年第3期28-30,52,共4页
Mining Safety & Environmental Protection
