突出煤层区域措施效检指标残余瓦斯含量临界值研究

Investigation and Study on Measure Effect Inspection Index Residual Gas Content Critical Value in Outburst Coal Seam Region

残余瓦斯含量是检验突出煤层瓦斯防治效果的重要指标,对煤与瓦斯突出灾害防治起到重要作用。为科学、合理、准确地确定该指标在不同煤层的实际临界值及相应的适用条件,确保煤矿对瓦斯防治效果检验的可靠性,通过在中岭煤矿一井现场3号煤层突出资料及以往数据统计分析、瓦斯基本参数测试及以往研究成果综合分析确定其残余瓦斯含量临界值初值,并对该初值进行现场考察和扩大实验,最终确定了3号煤层残余瓦斯含量临界值为9m^(3)/t,并分析了该临界值的适用条件。

The residual gas content is a major index to inspect outburst coal seam gas control effect,and played an important role in coal(rock)and gas outburst disaster control.To scientifically,reasonably and accurately determine the index’s practical critical value and corresponding application condition in different coal seams,ensure reliability of coalmine gas control effect inspection,through the Zhongling coalmine No.1 site coal seam No.3 outburst data and previous data statistical analysis,gas fundamental parameters testing and previous research findings integrated analysis have determined its residual gas content critical value initial.The site inspection and expanded experiment of the initial have finally determined coal No.3 residual gas content critical value is 9m^(3)/t,and analyzed the critical value application conditions.