CAJ | 학술논문

利用数值模拟软件FLAC3D对平煤十矿戊8.9-20230工作面进行了数值模拟，在模型煤层顶板布置一系列的监测点，根据开采引起监测点应力变化绘制了曲线图，并对图进行分析。根据数值模拟的计算结果，结合煤矿现场实际瓦斯抽采半径，确定了煤层中钻孔的封孔位置。考察钻孔封孔效果后，得出该封孔位置能够取得较好的抽采效果。
이용수치모의연건FLAC3D대평매십광무8.9-20230공작면진행료수치모의，재모형매층정판포치일계렬적감측점，근거개채인기감측점응력변화회제료곡선도，병대도진행분석。근거수치모의적계산결과，결합매광현장실제와사추채반경，학정료매층중찬공적봉공위치。고찰찬공봉공효과후，득출해봉공위치능구취득교호적추채효과。
Simulating the WU8.9-20230 working face of Pingdingshan tenth coal mine by using numerical simulation software FLAC3D. In the coal seam roof of model ,setting a series of monitoring points, according to changing stress of mining, drawing figures and analyzing the figures. According to the calculation of numerical simulation results and combining with gas drainage radius of the actual coal mine, determining the drilling hole sealing in the coal seam position. After inspecting hole sealing effects, it is concluded that the hole sealing position can get better extraction effect.