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针对复杂地质条件下巷道支护困难、常规支护方法失效的情况 ,设计了与摩擦锚杆联合使用的锚杆联系链。经现场试验和理论分析表明 ,锚杆联系链的支护效果很好 ,是一种经济、实用的新型支护材料
Aiming at the difficulty of roadway support under complex geological conditions and the failure of conventional support methods, the bolt chain used in conjunction with friction anchor was designed. The field test and theoretical analysis show that the supporting effect of the anchor chain is very good and is an economical and practical new type of supporting material