摘要
煤层瓦斯含量是煤矿瓦斯主要基础参数,对瓦斯含量测定的准确度影响到矿井的设计及安全生产管理,科学实验。对国内外煤层瓦斯含量测定方法的研究和应用情况作了介绍,并侧重对我国煤层瓦斯含量的应用情况加以描述。并重点指出,当前我国用直接法在地勘及井下钻孔中采集煤样测定瓦斯含量时,煤样暴露初始解吸瓦斯损失量计算中的不准确性,并指出在采集煤样时的改进意见。
Coal seam gas content is coal mine gas basic parameter,and the accuracy of gas content measurement affects the design and safety of mine production management,scientific experiments.The paper makes a presentation of the study and application of domestic and international coal seam gas content measurement methods,and focuses on the application of China＇s coal seam gas content.It highlights that the calculation of the initial desorption gas loss amount of coal samples exposed is inaccuracy as using direct method to collect coal samples in geological survey and underground drilling to determine gas content,and points out the improvements in the collection of coal sample.
出处
《煤矿安全》
CAS
北大核心
2012年第B10期129-132,共4页
Safety in Coal Mines
关键词
瓦斯含量测定
直接法
间接法
瓦斯损失量
gas content measurement
direct method
indirect method
gas loss amount
