钻孔瓦斯动态涌出规律的实验研究  

Experimental study on dynamic law of gas emission from borehole

作　　者：韩颖[1] 张飞燕[2] 余伟凡[1] 杨程涛[3] 蒋承林[4] 

机构地区：[1]河南理工大学能源科学与工程学院,河南焦作454000 [2]河南理工大学安全科学与工程学院,河南焦作454000 [3]河南煤业化工集团瓦斯研究院,河南郑州450046 [4]中国矿业大学煤矿瓦斯治理国家工程研究中心,江苏徐州221008

出　　处：《煤炭学报》2011年第11期1874-1878,共5页Journal of China Coal Society

基　　金：河南省教育厅自然科学研究计划资助项目(2009B440004);河南省教育厅自然科学研究计划资助项目(2010B440002);河南理工大学博士基金资助项目(B2008-15)

摘　　要：为深入探讨钻孔瓦斯动态涌出规律,设计了煤层模拟装置及钻进过程中钻孔瓦斯涌出速度测定装置,依照均匀设计方法确定了实验方案,运用动态测试技术进行了钻孔瓦斯涌出速度模拟测试。研究表明,动态测试技术可成功捕捉钻孔瓦斯涌出初始时刻的最大速度变化率,其出现在测试过程的前5 s,并且随煤层吸附瓦斯压力的增大而增大,该变化趋势反映了煤层突出危险程度的变化规律。In order to discuss further dynamic law of gas emission from borehole,coal bed simulator and measuring device of gas emission velocity during drilling process were devised,experimental schemes were prepared according to homogeneous design method,and simulation test were carried out using dynamic testing technique in laboratory.The research results show that dynamic testing technique can successfully achieve the biggest initial velocity rate which appears in initial 5 s during test process and augments with augmentation of gas adsorption pressure,the trend reflects change law of coal and gas outburst criticality.

关 键 词：钻孔 瓦斯 涌出初速度 动态测试技术 低指标突出 

分 类 号：TD712.52[矿业工程—矿井通风与安全]