最小突出压力下瓦斯瞬时放散速度指标V_1的实验研究  

Experimental Study on Index of Methane Transient Diffusion Velocity and It's Critical Value in Least Outburst Pressure

作　　者：富向[1] 曹垚林[1] 杨宏伟[1] 王志权[1] 

机构地区：[1]煤炭科学研究总院抚顺分院,辽宁抚顺113122

出　　处：《煤矿安全》2006年第9期4-6,共3页Safety in Coal Mines

基　　金：煤炭科学研究总院青年创新基金资助项目(2003QN01)

摘　　要：首次提出最小突出压力下瓦斯瞬时放散速度指标V1,即最小突出压力下吸附后向常压空间放散时第1 s的放散速度。通过对多组煤样的测试和实验,初步得出其临界值。V1指标不仅可提高煤与瓦斯突出预测准确率,还可在突出机理的研究中起到至关重要的作用,对预防煤与瓦斯突出有着很大的实用价值和理论意义。Index （V1） of gas transient diffusion velocity at the least outburst is adduced firstly in this paper, i.e. the first second diffusion velocity of discharging to constant pressure airspace after absorption. By the testing and research of several coal samples, getting its critical value. Index （V1） not only improve accuracy rate of gas outburst prediction, but also exerting the important cffect in the research of gas outburst mechanism , in possession of practical value and theory meaning for precluding coal and gas outburst.

关 键 词：突出指标 瞬时放散速度 区域预测 

分 类 号：TD712[矿业工程—矿井通风与安全]