Research Status-quo and Tendency of Thread-steel Resin Anchored Bolt

Based on development status-quo of resin anchored bolt in Chinese collieries,this paper firstly presented current problem of thread-steel resin anchored bolt including steel quality,shape,transverse rib and interval of ribs,screw thread and components during production and use.Then,it put forward research key to anchored bolt supporting and problems which should be resolved.