Reseach and Practice on Full-length Anchoring Bolt Support in Coal Mine

The existing problems of the traditional bolt support in coal mine roadway under complex conditions influence the cohesion of the working surfaces.To analyze the influenses of the different modes of anchorage support on roadway theoretically,obtaine full-length anchoring used in roadway can enhance the slippage of bolts on surrounding rock and separation control.Through the underground practice in Dashucun coal mine to prove the full-length anchoring bolt support is superior to the traditional end anchoring support,and effectively control the deformation of surrounding rock and assure the production safety of coal mine.