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为得到余吾煤业在大采宽开采条件下的沉陷规律,以便提出切合实际的防治措施,以余吾煤业S1202工作面为研究背景,运用FLAC3D对该工作面的开采沉陷进行模拟分析,得出了地表移动变形规律及其最大值。将FLAC3D模拟工作面停采时得到的地表最大下沉量和水平移动量与现场实测值作对比,结果表明两者相对误差较小,验证了模拟结果的准确性。对余吾煤业及其他矿区大采宽工作面的开采沉陷预测具有借鉴意义。
In order to get the law of subsidence of YuWu coal mining under the conditions of large mining width in order to put forward practical control measures, taking the S1202 working face of YuWu coal industry as the research background, the mining subsidence of this face is simulated by FLAC3D. The law of surface deformation and its maximum. The maximum surface subsidence and the horizontal displacement obtained when the FLAC3D working face is stopped are compared with the field measurements. The results show that the relative error between the two is small, which verifies the accuracy of the simulation results. It is of reference significance to forecast the mining subsidence of the large mining face in Yuwu coal industry and other mining areas.