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针对近距离煤层群下部巷道软岩底板的大变形的问题,结合补连塔矿2-2煤层实际开采条件,对复杂条件下的巷道底鼓机理进行了研究,通过比较不同控制措施对软岩底板的适应性,确定了切槽卸压治理方案,利用数值模拟软件进行了开采与卸压模拟。结果表明切槽措施对巷道底板变形有明显控制效果。确定了该条件下底鼓控制的合理方案。
In view of the large deformation of soft rock floor in the lower part of coal seam group with close distance, combined with the actual mining conditions of coal seam 2-2 in BuLintan Mine, the mechanism of tunnel bottom drum under complicated conditions is studied. By comparing different control measures, Floor adaptability, determine the slotting pressure relief control program, the use of numerical simulation software for mining and pressure relief simulation. The results show that the grooving measures have a significant control effect on the deformation of roadway floor. Determine the reasonable conditions of the bottom drum control program.