济三煤矿163_下02工作面超前支承压力分布特征实测研究

Actual Research on Advance Force of Support Distribution Characteristic in Jining No.3 Coal Mines 163_(next)02 Working Face

通过常规矿压围岩变形观测,找出围岩变形规律,分析推断出工作面回采期间超前支承压力影响范围、峰值影响区及支承压力变化特征,并制定科学合理的对策,主动控制顶板,提高了支护及时性和支护效果。

Presses the adjacent formation distortion observation through the conventional ore, discovers the adjacent formation distortion rule, the analysis infers the working face to return to picks the period in advance force of support influence scope, the peak value influence area and the force of support change characteristic, and formulates the science reasonable countermeasure, controls the roof on own initiative, enhanced the supports and protections timeliness and the supports and protections effect.