In view of deep and complicated roadways in coal mines, the bolting mechanism was analyzed, the high pretensioned stress and intensive supporting theory was put forward.

• 摘要针对煤矿深部及复杂困难巷道条件，分析了锚杆支护作用，提出高预应力、强力支护理论，大幅度提高支护系统的初期支护刚度与强度，保持围岩的完整性，减少围岩强度降低；