1) coal body moves to press to note water
煤体动压注水
3) coal injection
煤体注水
1.
The difference in wettability of flat ditch coal 16# was studied,and elninor and sodium dodecyllbenzenesulfonic acid and two kinds of surfactants were added to improve its coal wetting in order to enhance the effect of coal injection.
煤体注水的好处很多,但是不同煤质会对注水造成不同的影响。
4) a seam below water bodies
水体压煤
5) dynamical pressure water infusion
动压注水
1.
Through the combined technologies experiment of dynamical pressure water infusion in the coal seam,tunnelling with the pneumatic pick and handpick,U-bar support and I-bar spreader bar support,we have found the ways to solve the problems such as the great pressure,being soon in bad repair,being hard to uphold,and short using cycles of the tunnels in Lugou Coal Mine.
通过利用煤层动压注水、手镐配合风镐掘进、U型钢支架配合工字钢扩杆支护联合技术的实验,找到了解决芦沟煤矿巷道压力大、失修快、难以维护、使用周期短等难题的途径。
6) Water injection in Coal Seam
煤层压力注水
补充资料:冲击波超压与动压