大冶铁矿东露天采场边坡破坏判据的研究

Study on criterion of slope failure in eastern open pit in Daye

通过对大冶铁矿东露天采场F9、F13断裂带内边坡的深入研究,从整体与局部稳定性系数等方面探讨了边坡破坏判据.利用有限元强度折减法和极限平衡法计算边坡的体稳定性,得出边坡处于极限平衡状态时的塑性应力及塑性应变,提出边坡破坏判据.

In this paper,an in-depth study on the slopes in F9 ,F13in eastern open pit in Daye（Hubei） iron mine and a discussion on overall stability and local factors has been done. The stability coefficient is calculated by using FEM strength reduction and limit equilibrium method. It finds out the plastic stress and the plastic strain of the slope in the state of limit equilibrium and gets slope damage criterion model in the article.