1) coal seam Stubble Repeating
煤层压茬
2) coal seam pressure
煤层压力
3) hydraulic fracturing in coal reservoir
煤层压裂
4) semi-confined coal seams
承压煤层
1.
based on the theory of gas flow in confined coal seams and taking into account the characteristics of gas flow in semi-confined coal seams,the paper deduced the differential equation of gas flow in semi-confined coal seams with both isotropic and anisotropic permeability,thus built the mathematical model of gas flow in semi-confined coal seams.
当煤层上覆岩层和底部岩层为致密岩层、透气性极小时,可以认为完全不透气,则含瓦斯煤层为承压煤层;当煤层上覆岩层和底部含有一定的裂隙,其渗透系数与含瓦斯煤层相比虽然很小,但仍然有少量瓦斯通过透气性较低的上下岩层流入或流出含瓦斯煤层,此时含瓦斯煤层为半承压煤层。
5) Superseding length
压茬长度
6) Rock Burst seam
冲击地压煤层
补充资料：断茬
1.根绝﹐不复存在。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条