摘要
以晋平煤矿1061工作面为实验场地,通过理论分析与现场观测相结合的方法,建立相似材料模型,结合图像分析技术对1601工作面顶板裂隙分布特征进行研究,并以此为依据进行顶板裂隙带钻孔的布置。结果表明:工作面回采结束后,顶板会形成采动裂隙,只要掌握采动裂隙的发育情况,并且确定瓦斯运移富集区,就能为顶板走向钻孔抽放的布置提供合理参数,从而能更有效提高卸压瓦斯抽采浓度,治理采空区上隅角的瓦斯,保证煤矿安全生产。
The experimental site in 1061 Jinping coal face. through combination of theoretical analysis and field observations methods to create a similar material model, then by image analysis techniques to study the distribution of crack face roof 1601, base on which to furnish roof fractured zone drilling, the results show that ： the roof will form mining - induced fractures after finishing the face mining, if master the de- velopment of mining - induced fractures and determine enrichment area of gas migration, will be able to provide reasonable layout parameters of gas drainage from boreholes arranged along roof strike. Thus, people can more effectively pumping high concentrations of pressure relief gas and reducing gas of gob, thereby ensuring the safety of coal production.
出处
《内蒙古煤炭经济》
2014年第7期162-163,共2页
Inner Mongolia Coal Economy
关键词
相似材料模型
图像分析
回风隅角
顶板钻孔布置
Similar material model
image analysis
return comer
furnished roof drilling
