摘要
为了对工作面既定瓦斯抽采率进行合理抽采时间预期,根据开采层煤层地质条件、钻孔布孔方式及单位质量煤体瓦斯含量特征,采用Comsol Multiphysics软件对煤体瓦斯压力进行了模拟分析,确定了工作面不同瓦斯抽采率下,钻孔瓦斯压力变化情况及预抽时间。通过对所取煤样残余瓦斯含量测定,验证了数值模拟的结果较为可靠。
In order to examine the drained time expectancy reasonably, under the panel＇s specific gas efficiency, Combining with the condition of formation rock, the layout of boreholes and the characteristic of gas content in coal mass, the Comsol Multiphysics software was adopted to simulate the process of the evolution of the gas pressure in coal seam, and the time expectancy was determined with the different drained efficiency. What＇s more, the experimental test indicates that the simulation result is reliable in some degree comparing
出处
《煤炭技术》
CAS
北大核心
2017年第1期201-203,共3页
Coal Technology
基金
贵州省教育厅“125”重大科技专项计划项目(黔教合重大专项字[2012]017号)
关键词
瓦斯抽采
抽采率
残余瓦斯含量
gas extraction
drainage with residual gas content measured. efficiency
residual gas content
