基于低临界值的瓦斯动力现象分析  

Analysis on Gas Dynamic Phenomenon Based on Low Critical Value

作　　者：白新华[1,2] 孙明闯 吴财芳[1] 耿仪 史小卫 

机构地区：[1]中国矿业大学资源与地球科学学院煤层气资源与成藏过程教育部重点实验室,江苏徐州221008 [2]河南省煤层气开发利用有限公司,河南郑州450016

出　　处：《煤炭科学技术》2011年第12期48-50,共3页Coal Science and Technology

基　　金：国家科技重大专项资助项目(2011ZX05034);国家自然科学基金重点资助项目(40730422);国家自然科学基金青年科学基金资助项目(40802032)

摘　　要：为更好地预防低临界值瓦斯动力现象给煤矿安全生产带来的危害,通过对豫西三软煤田地区瓦斯地质条件,瓦斯含量、瓦斯压力及其梯度的统计分析,结合综合能量假说的分析论证方法,对低临界值瓦斯动力现象进行了研究。结果表明,煤层松软,煤体坚固性系数小时,瓦斯含量低、瓦斯压力小仍然易发生瓦斯动力现象。In order to better prevent the low critical value gas dynamic phenomenon causing a danger to the mine safety production,with the statistic analysis on the gas content,gas pressure and gas pressure gradient under the gas geological conditions in the three soft coal field of Yuxi Area,in combination with the analysis proof method of the comprehensive energy presupposition,a study was conducted on the dynamic phenomenon of the low critical value gas.The results showed that when the seam was soft and the coal ruggedness coefficient was low,the seam with low gas content and low gas pressure also would be easy to occur the gas dynamic phenomenon.

关 键 词：瓦斯动力现象 瓦斯含量 瓦斯压力梯度 三软煤层 

分 类 号：TD713[矿业工程—矿井通风与安全]