摘要
为采取有效、合理的瓦斯治理技术解决工作面瓦斯超限问题,对工作面瓦斯涌出分布规律通过采取建立观测站的方式进行统计分析,表明工作面瓦斯浓度在空间上分布是不均衡的。上隅角瓦斯浓度随着产量的增加呈上升趋势,随着配风量的增加而呈上升趋势,配风量到一定值后上隅角瓦斯浓度急剧下降;在工作面来压期间,综放面瓦斯浓度由0.42%~0.56%增加到0.64%~0.9%,瓦斯涌出量增加了50%以上。
To solve the problem of gas overrun at working face, the author makes a statistical analysis of gas e mission distribution by establishing observation station, which shows that the distribution of gas concentration is unbalanced in space： gas concentration at upper corner is on the rise with the increase of production and air supply, and plunges dramatically with the increase of air supply to a certain amount; gas concentration has increased from 0.42%-0.56N to 0.64%-0.9% and gas emission by more than 50%in period of pressure
出处
《江西煤炭科技》
2015年第2期5-7,共3页
Jiangxi Coal Science & Technology
关键词
工作面
瓦斯
涌出规律
上隅角
working face
gas
emission regularity
upper corner
