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分析了大断面巷道破坏原因及U型钢桁架锚索支护系统的支护机理。在软岩巷道中采用U型钢桁架锚索支护方式,能对巷道围岩进行有效的控制,取得良好的支护效果。
The reasons for the failure of large cross-section roadway and the supporting mechanism of U-steel truss cable supporting system are analyzed. The use of U-shaped steel truss and anchor cable support in soft rock roadway can effectively control the surrounding rock of the roadway and achieve good support effect.