欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用工作面超前支承压力作用对石港煤矿15101综放面进行了低透气性本煤层瓦斯的抽采，并对抽采效果进行了研究，结果表明：受工作面超前支承压力影响，本煤层瓦斯抽采钻孔的抽采量随工作面位置变化可划分为4个阶段，瓦斯抽采原始阶段（工作面前方50m以外）、抽采减弱阶段（工作面前方50～21m）、瓦斯抽采增长阶段（工作面前方21～7m）和瓦斯抽采衰减阶段（工作面前方7m以内），钻孔与工作面的夹角不宜超过30°。
英文摘要：
The paper had a study on gas drainage results in a low permeability seam with advanced support pressure in 15101 fully mecha- nized top coal caving mining face in Shigang Mine. The results showed that with the influence of the advanced support pressure, the gas drainage value with the working seam gas boreholes of the face could be divided into four stages with the face location varied. The four sta- ges were the gas drainage initial stage （50 m beyond the front of the coal mining face） , gas drainage reduced stage （50 -21 m in front of the coal mining face） , gas drainage increased stage （21 -7 m coal mining face） and gas drainage attenuation stage （7 m in front of the coal mining face）. It is not suitble that the angle between the borehole and coal mining face is more than 30°.
同期刊论文项目
同项目期刊论文
Experimental study on properties of transverse strain and gas flow of coal containing gas in process
Experimental study on evolution of mechanical parameters of coal containing gas under unloading conf
期刊信息
位置：