CAJ | 학술논문

为解决白象山铁矿在上向进路充填采矿过程中充填接顶效果不理想的问题，对该矿山的充填接顶率进行了研究。运用 MIDAS ／GTS 有限元软件模拟分析二步进路采场开采时，一步进路采场不同充填接顶率胶结矿柱受力状况，并对胶结矿柱安全稳定性进行评价，对不同充填接顶率进行分析，从而确定最佳充填接顶率。当二步进路采场开采时，一步进路采场80％充填接顶率胶结矿柱抗拉安全系数为2．03，抗压安全系数为1．28，综合安全系数为1．6，为该矿上向进路充填法的最佳充填接顶率。该研究为其他矿山科学提高充填接顶率提供了一种全新的指导方向。
위해결백상산철광재상향진로충전채광과정중충전접정효과불이상적문제，대해광산적충전접정솔진행료연구。운용 MIDAS ／GTS 유한원연건모의분석이보진로채장개채시，일보진로채장불동충전접정솔효결광주수력상황，병대효결광주안전은정성진행평개，대불동충전접정솔진행분석，종이학정최가충전접정솔。당이보진로채장개채시，일보진로채장80％충전접정솔효결광주항랍안전계수위2．03，항압안전계수위1．28，종합안전계수위1．6，위해광상향진로충전법적최가충전접정솔。해연구위기타광산과학제고충전접정솔제공료일충전신적지도방향。
In the process of upward drift stoping with backfill in Baixiangshan iron mine,the roof-contacted effect is not perfect,the roof-contacted filling ratio of the mine is researched.The MIDAS /GTS finite element software is applied to analyze the stress condition of the first-step approach stope cemented pillars that have different roof-contacted filling ratio when the second-step approach stope are conducted. Besides that,the security and stability of the cemented pillars are evaluated,and the different roof-con-tacted filling ratios are analyzed in depth so as to determine the optimal roof-contacted filling ratio.when the second-step approach stope are conducted,the tensile safety coefficient of the first-step approach stope cemented pillars with 80%roof-contacted filling ratio is 2.03,the compressive strength factor of safety is 1.28,the synthesized safety coefficient is 1.60.The above research results can provide a brand-new di-rection for the other mines to improve the roof-contacted filling ratio scientifically.