论文部分内容阅读
针对付村煤矿3上403运输顺槽具体情况,在理论分析与数值模拟的基础上,确定采用锚梯网(锚索)联合支护方案,并确定了巷道支护参数。结果表明,平衡主控支护,在支护与围岩相互作用中充分利用了围岩的自承能力,巷道支护效果发生了本质变化,顶板位移量平均为巷道高度的0.7%,两帮位移量为巷道宽度的0.82%,有效控制了围岩变形。
According to the concrete conditions of the tunnel 403 in Fucun Coal Mine, based on the theoretical analysis and numerical simulation, the anchor support network (anchor cable) joint support scheme is determined and the parameters of roadway support are determined. The results show that balanced main control support makes full use of the self-bearing capacity of surrounding rock in the interaction between support and surrounding rock, and the effect of roadway support has taken an essential change. The displacement of roof is averagely 0.7% of the height of the roadway. The displacement is 0.82% of the width of the roadway, effectively controlling the deformation of surrounding rock.