露天煤矿边坡稳定性评价方法的耦合应用

详细信息

The coupling application of methods for evaluating slope stability of open-pit

1. Dept. of Geology and Environment Engineering, Xi'an University of Science and Technology, Xi'an 710054, China;
2. Sichuan Mine Safety Technology Training Centre, Chengdu 610000, China

摘要: 将有限差分法、极限平衡法(简化Bishop法)、可靠度分析法(简化一次二阶矩法)耦合应用于露天煤矿边坡稳定性评价,确定了可靠度法设计中的可靠度数值问题,并采用力学行为、稳定系数及破坏概率等3项综合指标分析了边坡稳定性,旨在建立一种有效的耦合方法,多角度分析边坡工程的即时状态。研究结果表明,该分析方法可行,结果可信。
- 边坡稳定性 /
- 三维数值分析 /
- 强度折减法 /
- 极限平衡法 /
- 可靠度分析
Abstract: In order to establish an efficient coupling method for analyzing the temporal status of the engineering slope from different viewpoints this paper educes the reliability level used in possibility design method by coupling FLAC3D with possibility design method(FOSM) and equilibrium method(simplified Bishop method),and judges the stability of slope by synthesis index composed of mechanical behavior,stability factor and the failure probabil-ity.The study results indicated that this method is feasible and credible.
- slope stability /
- 3D numerical analysis /
- strength reduction method /
- limit equilibrium method /
- reliability analysis