Study On Ground Pressure Characteristics And Surrounding Rock Control Technology Of Island Coal Face Driving Roadways Along Goaf

Exploit island coal face in favor of solve our country coal mine resource exploit rate, but island coal face roadway timbering is a matter of all the time trouble island coal face safety, efficient stopping problem.This thesis based on PanSan coal mine 1251 (3)island coal face ventilation roadway, adopt numerical simulation scene actual measurement,eoretical analysis comprehensive research method,and studied on pressure characteristics and surrounding rock control technology of island coal face driving roadways along goaf.Through numerical simulation,we analysis compare the timbering effect of island coal face driving roadways along goaf five types timbering program,meanwhile contrastive analysis the characteristics of stress and transformation of island coal face driving roadways along goaf and ordinary driving roadways along goaf; Through scene actual measurement, this thesis obtain mine pressure visualize law of island coal face driving roadways along goaf five types timbering program; Through theoretical analysis research roof convergence relevant factor;Based on mine pressure characteristics of island coal face driving roadways along goaf,then roposed control technique of roadway surrounding rock.