中文摘要：

煤层瓦斯基础参数是表征煤层蕴含瓦斯能力大小、煤层突出危险性强弱和瓦斯抽采难易程度的关键性指标.以湖南白山坪矿-400~-600m延深水平为研究对象,对其主采6煤的瓦斯基础参数进行了测试.6煤的瓦斯压力P,瓦斯含量W,坚固性系数f,放散性初速度△P等数据结果均显示其突出危险性.通过钻孔瓦斯流量衰减系数、百米钻孔瓦斯极限涌出量和煤层透气性系数测定结果显示,6煤预抽的难易程度属勉强类,由此提出了延深水平各采区的“底板岩巷条带穿层钻孔＋煤巷顺层钻孔”的综合防突措施和考虑增透措施建议.

英文摘要：

Coal gas parameters is the key indicator of the ability of containing gas in coal, the danger strength of coal outburst, and the difficulty level of gas extraction. In this paper, gas parameters of NO. 6 coal from 400 meters to 600 meters underground are tested. The data are obtained, including coal gas pressure P, gas content W, sturdiness coefficient f, tossing in initial velocity AP, which all show the danger of the outburst. By the results of gas flow attenuation coefficient, quantity of limit of gas emission with one hundred meters borehole drilling and coal seam permeability coemcient, it shows that the difficulty of the gas extraction of NO. 6 coal is reluctant class. Thus, this paper puts forward the comprehensive outburst prevention measures of ＂floor rock band wear layer and bedding in coal roadway borehole the mining area. drilling＂ and increasing the permeability in deep level of