Surrounding Rock Control Countermeasure for Gob-side Entry Retaining in Panyidong Coal Mine

Based on "two-stage" retaining roadway principles of "strengthening before mining" and "governance after mining", the paper analyzed main controlling factors of surrounding rock control, developed surrounding rock support countermeasures of Panyidong rail along goaf, made industrial test. The results showed that surface displacement was small, surrounding rock was stability, support effects were fairly good after using supporting scheme of "two-stage principles".