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近来,克里沃罗格矿山生产联合公司苏共二十大矿务局在开采平均厚为20～45米的矿体中,广泛采用垂直扇形深孔向水平补偿空间崩矿的分段崩落法方案。此方案中,用横巷运搬方式(将扒矿横巷布置在中间分段)代替以往的平巷运搬方式大大提高了切割与回采效率,满足了强化开采的要求。在矿体下盘,沿走向每隔100米掘进矿岩溜放天井、人行天井和辅助天井,以保证首先掘进中间受矿水平上的通风平巷(图中,
Recently, in the ore body with an average thickness of 20 to 45 meters, the coalmine bureau of the Twenty-one Nuclear Power Administration of the Klivowoog Mining Production Joint Company extensively adopted vertical fan-shaped deep holes to horizontally compensate for the subsidence of the landslip Program. In this plan, the method of cross-lane transport (the pavement of paving slabs is arranged in the middle section) replaces the former laneway transport mode and greatly improves the efficiency of cutting and recovery, which meets the requirements of intensified mining. In the ore body under the plate, along the walk every 100 meters to dig into the rocky slippery patio, pedestrian patio and auxiliary patio to ensure that the first boring of the mine by the level of ventilation Lane (Figure,