【摘要】 为了研究井工-露天联采边坡的稳定性,利用数值模拟计算方法以及塑性极限理论的上限法对井工复合开采条件下露天边坡的稳定性进行了计算和评价.通过增加井工开切眼与边坡之间的水平距离,分别评价了露天边坡的稳定性.结果表明,随着井工开切眼与边坡之间水平距离的增加,边坡受到井工开采的影响减弱,边坡的稳定性提高.当距离增加20 m时,边坡的整体稳定性得到改善,达到了边坡安全生产的要求.更多还原

【Abstract】 In order to study the slope stability when he combined mining mode of open pit and underground mining,we calculated the slope stability of open pit under complicated mining conditions based on the numerical simulation and the upper bound method.The stability of slope was evaluated when the horizontal distance between open-off-cut and slope was increased.The results show that the slope becomes more stable with the increase of the horizontal distance and the collapse effect of mining on the slope decreased.When the horizontsl distance increases by 20 m,the slope as a whole is quite stable and can meet the stability standard.更多还原