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以某矿为工程背景,通过数值模拟方法,分析了预应力锚网喷、锚索耦合支护机理,确定了深部复杂条件下合理的锚网喷+锚索耦合支护结构,并优化了支护参数及施工过程。现场应用表明:该方案可充分保护巷道浅部围岩,调动深部岩体强度,充分发挥围岩的自承能力,有效控制巷道变形,支护效果明显。
Taking a mine as the engineering background, through the numerical simulation method, the coupling support mechanism of prestressed anchor net spray and anchor cable is analyzed, and the reasonable anchoring net spray + anchor cable coupled support structure under deep complex conditions is determined and the support is optimized Guard parameters and construction process. The field application shows that this scheme can fully protect the surrounding rock of the shallow part of the roadway, mobilize the strength of the deep rock mass, give full play to the self-bearing capacity of the surrounding rock and effectively control the deformation of the roadway, and the supporting effect is obvious.