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随着矿井采深的不断加大 ,巷道支护表现出软岩支护的特点 ,锚杆锚固方式由端锚逐步向加长锚、全锚方向发展。从锚杆的支护设计到锚杆的支护密度确定 ,从理论到现场应用 ,全面论述了不同围岩条件下锚杆支护巷道合理支护参数的选择方法。
With the deepening of mining depth, the roadway support shows the characteristics of soft rock support. The anchoring method of anchors gradually extends from end anchors to longer anchors and all anchors. From the support design of the rock bolt to the determination of the support density of the rock bolt, from the theory to the field application, the selection method of reasonable support parameters of rock bolt supporting roadway under different surrounding rock conditions is fully discussed.