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覆岩运动破坏规律对保护生态及矿井的安全生产具有重要意义。以酸刺沟煤矿为试验矿井,采用深基点和数值模拟试验对采动覆岩运动破坏规律进行研究。结果表明:酸刺沟煤矿综放开采覆岩两带高度分别为49.24 m和133.62 m,从煤层至地表,随着埋深的减小,岩层起始运动时间滞后,说明覆岩运动是自下往上逐渐发展的,且基点的相对位移量整体呈降低趋势。
The law of overlying rock movement destruction is of great significance to the protection of ecology and mine safety production. Taking the Suancigou coal mine as the test well, the deep foundation point and numerical simulation tests were carried out to study the law of overlying rock movement. The results show that the height of two strata of fully mechanized caving mining in Suancigou coal mine are 49.24 m and 133.62 m, respectively. From the coal seam to the surface, the initial movement time of the strata lags behind with the decrease of burial depth, The gradual development of upward, and the relative displacement of the base point overall downward trend.