露天转地下开采对边坡稳定性的影响研究

Study of Influence on Slope Stability from Open-pit to Underground Mining

针对矿体从露天转地下的开采,结合工程实例和数值模拟的方法,提出了采用无底柱分段崩落法,分析了随着开采矿房深度的增加,上部边坡的受力及位移情况,并且分析了采空区充填对边坡稳定性的影响,得出合理的开采方案。

In view of the orebody from open-pit to underground mining, combined with project example and the method of numerical simulation,proposed the bottomless pillar sublevel caving method is adopted, analyzed the stress and displacement of the upper slope with the increase of room open mining depth, analyzed the influence of filling on the slope stability of mined-out area, the rational mining solutions are obtained.