某铁矿高边坡稳定性分析

随着采掘工业的不断发展，对高边坡露天采场的设计合理优化，能进一步保证开采的施工安全，还能在减少废石剥离的情况下达到多采矿石的经济效果。对某大型富铁矿高边坡进行现场分析，总结出高边坡出现的几种破坏模式，并用极限平衡法、强度折减法、点安全度法来分析、计算矿山高边坡，结果表明点安全度法不但计算精确，且更直观地反应边坡不同部位的稳定程度。对其中的不稳定边坡，必须采取加固措施。

Analysis on Stability of High Slope at A Iron Mine

As development of mining industry, proper optimization of design of high-slope open pit may further guarantee the safe mining and get economic effect by way of more ore to be mined in the condition of stripped waste rock being reduced. This paper analyzed the high slope at certain large iron-rich mine and generalized several failure modes of high slope. By means of limit equilibrium, strength reduction and point safety degree, the high slope stability was calculated. The results show that point safety degree method is of not only precise calculation but also more direct reflection of stability degree at different parts of the slope. For the instable part, measures must be adopted for reinforcement.