The Discussion on Reinforcing Way of Key Support Parts in Gob-side Entry Retaining

Through the analysis of roof activity laws in gob-side entry retaining,the paper provided the reinforcing way of gob side backfill,tunnel nether roof,coal wall and other key support parts,which ensured the safety and smooth recovery of W₂713 hewing and E₁403 fully mechanized coal face,further improved the reliability and applicability of gob-side entry retaining technique and promoted the range of applications.