【摘要】 应用数值模拟技术对新疆东戈壁露天矿边坡不同排土场安全距离问题进行了真实有效地分析,直观地再现了边坡应力和位移变化,并得到边坡的稳定安全系数。结果表明:在没有排土场作用下,露天坑边坡处于相对稳定状态,当排土场安全距离为50m时,安全系数急剧减小到0.68,随着排土场安全距离的增大,安全系数随之增大。当排土场安全距离为300m时,边坡安全系数达到0.99,当安全距离大于400m时,排土场几乎不会对边坡的稳定性造成影响。数值模拟技术对边坡排土场安全距离的确定具有重要的指导意义,为东戈壁露天矿边坡开挖提供了有效的技术支撑。更多还原

【Abstract】 The slope stress and displacement variation has been reflected and the stability of slope safety factor has been got through the application of numerical simulation technology of different dump safety distance of slope.The result in the absence of dumping effect that the open pit slope is in relatively stable state.And the slope safety factor is reduced sharply to 0.68 when the dump safety distance is 50m,And the slope safety factor is increased with increasing dump safety distance.The slope safety factor is 0.99 when the dump safety distance is 300m When the safety distance is greater than 400m,dump have hardly influence on slope stability.The numerical simulation to the determination of dump safety distance is of important guiding significance.It provides effective technical support of Donggebi open-pit mine excavation.更多还原