Study on Mine Pressure Laws of Unequal Length Working Face

In the coal mining process, working face will present unequal length affected by geological structure. In order to grasp the roof movement laws of unequal working face, continuous recording intelligent pressure instruments are installed in fully mechanized mining support to record roof pressure. The theory analysis and mine pressure observation show that average pressure of working face increases with the length increase of unequal length working face, and periodic weighting distance has the tendency of reduction.