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中文摘要：
以靠帮开采理论及实践为基础，对危险滑动面仅存在于边坡局部地区的边帮进行了研究，结合滑面的分布情况，提出了重新确定靠帮开采不动境界的方法。利用GEO-studio软件对靠帮开采时不同境界高度、坡面角度的边坡稳定性进行分析，验证了压帮内排的积极效果，并得出了三道岭露天矿靠帮开采不动境界的位置为距坡底50m高程处，下部边坡角可提高至46。等结论。研究结果表明：结合边坡稳定情况确定靠帮开采不动境界，可以在片帮边坡有效地实施靠帮开采，剥采比降至1．84m^3／t，走向长每米可增加煤炭回收量273．376t。
英文摘要：
Based on the theory and practice of steep end- slope mining,when dangerous sliding surface only exists in the local area of slope, in light of the distribution situation of sliding sur- face, the paper puts forward a method to redetermine fixed boundary for steep end - slope mining. By GEO - studio soft- ware, the stability analysis of slope with different boundary height and different slope angle was made for steep end - slope mining, and the positive effect of inner - dumping with burying slope was proved. It was concluded that the fixed boundary of steep end - slope mining was 50 m in height from the bottom of slope, the slope angle of underpants could increase to 46° in Sandaoling surface coal mine. The results of study showed that when the fixed boundary is redetermined based on slope stability analysis, steep end- slope mining can be implemented effectively, so the stripping ratio can be reduced to 1.84 m3/t, and the recovery a-mount of coal in length of a metre along the strike can be in- creased by 273. 376 t.
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