两柱掩护式电液控制支架在“两硬”条件下的应用

Application of Two-leg Shield Hydraulic Stent

针对侏罗纪煤层处于坚硬整体性顶板和坚硬煤层的"两硬"开采条件的特点,通过两柱掩护式支架与四柱支撑掩护式支架的比较,介绍了电液控制技术在液压支架上的应用前景,论述了两柱掩护式电液控制支架的实用性及优越性,得出在"两硬"条件下中厚以上煤层中应推广使用两柱掩护式支架,并根据发展逐步实现支架的电液控制的结论。

The Jurassic coal seams has hard integrated roof and hard coal seam. By comparing the two-leg shield hydraulic stent and the four leg shield hydraulic stent, this article introduced the prospects of using the electro-hydraulic control technology in hydraulic stent, talked about the practicality and superiority of using two-leg shield hydraulic stent, and concluded that the two-leg shield should be used and the electro-hydraulic control technique should be applied.