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为研究煤层回采过程中底板在采动影响下的破坏情况,应用直流电阻CT技术进行现场实测。通过对煤层不同回采时期底板岩层钻孔间电阻率CT切片图的对比,判断底板在采动影响下的破坏情况。
In order to study the destruction of the floor under the influence of mining during the process of coal seam mining, the on-site measurement was made by DC resistance CT technique. Through comparing the CT resistivity CT slices of the bottom strata during the different coal mining periods, the damage of the floor under the influence of mining is determined.