Procedure Optimization and Support Technology of Tunneling-anchoring-shielding Integration Speedy Drivage for High Stress Coal Roadway

Deep roadway is affected by high geo-stress, high temperature and many other factors, which leads to slow tunneling speed, high labor intensity and poor operating environment. With the advantage of tunneling-anchoring-shielding process mechanization and continuous characteristics, the field test was carried out in Chengjiao Coal Mine and the main restraint factors of speedy drivage was analyzed, thence, a series of process optimization schemes were proposed. As a result, the driving speed increased by 31.7%, drivage efficiency and anchoring quality were improved, and work environment and safety were also ameliorated.