The high pretensioned stress and intensive bolting system was developed, including intensive bolt, steel strip and cable bolt with a big increase in mechanical functions.

• 高预应力、强力支护系统成功应用于新汉矿区千米深井巷道，巷道变形降低70%25左右，顶板离层仅为原来的5%25，巷道支护状况发生了本质改变。