CAJ | 학술논문

针对煤层条件，按照采取煤样的粒径将其分为4类，在基于煤样粒径的瓦斯解吸速度理论研究基础上，采用现场实测及实验室瓦斯解吸数据分类对不同粒径煤样的采取条件、采样方法及采样时间进行了系统分析，结合现有成熟的岩芯管、压风引射取样装置、反循环正压快速采样装置以及孔口接煤屑等取样装置及方式的技术使用条件，提出了不同煤样粒径类型及采样条件下的合理采样技术工艺及方法，规范了瓦斯含量直接法测定工作。
침대매층조건，안조채취매양적립경장기분위4류，재기우매양립경적와사해흡속도이론연구기출상，채용현장실측급실험실와사해흡수거분류대불동립경매양적채취조건、채양방법급채양시간진행료계통분석，결합현유성숙적암심관、압풍인사취양장치、반순배정압쾌속채양장치이급공구접매설등취양장치급방식적기술사용조건，제출료불동매양립경류형급채양조건하적합리채양기술공예급방법，규범료와사함량직접법측정공작。
In view of coal seam condition, coal samples were divided into four categories according to there particle sizes. Based on the theoretical research on gas desorption speeds of coal samples with dif-ferent sizes, the sampling conditions, sampling methods and sampling times of coal samples with dif-ferent sizes were analyzed systematically according to the gas desorption data from field and laboratory measurement. Meanwhile, according to applicable conditions of mature sampling equipment and meth-ods, such as coal barrel, pressure air ejector coal sampling equipment, reverse circulation plus wind pressure coal sampling equipment, and orifice connected with coal powder method, the suitable sam-pling technology and methods of coal samples with different sizes and sampling conditions were put forward, which can provide instruction for gas content direct determination in underground mine.