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通过利用FLAC3D数值模拟软件,以补连塔煤矿近水平煤层为背景,对补连塔矿区主要影响覆岩移动和破坏的不同采高进行研究,并分别建立了不同采高和地表移动、覆岩破坏、拉伸区的量化关系,可以预测大采高对采空区上覆岩层的损伤程度,并提前采取措施,可防止工作面溃沙、透水和保护地表植被。
By using FLAC3D numerical simulation software and taking the near horizontal coal seam of BuLianTa coal mine as the background, this paper studied the different mining heights that affect mainly the movement and destruction of overlying strata in BuLingTa mining area, and established different mining height and surface movement, The relationship between the damage and the extensional zone can predict the damage degree of the overlying rock strata in the mined-out area due to the large mining height and take some measures in advance to prevent the working face from chaffing, permeating and protecting the surface vegetation.