露天煤矿边坡稳定性数值模拟分析

Numerical simulation analysis on slope stability in open-pit coal mine

露天煤矿顺倾层状边坡稳定性差,在开采企业领域属于需要解决的技术难题。以乌海市露天煤矿为例,对露天煤矿的顺倾层状边坡进行优化设计分析,并对选取的工程模型边坡稳定性进行分析,确保选取的模型及数据更接近于实际。以煤矿顺倾层边坡的稳定性在断层倾角及走向交角为例,对断层倾角及走向交角进行分析,探究断层倾角及走向交角对于边坡的稳定性的影响。通过对断层倾角的8种工况模型和走向交角的7种工况模型进行数据分析,得出其倾角变化对边坡稳定系数的影响,进而提出相应的防护措施。

The stability of the inclined layered slope of open-pit coal mine is a technical problem that needs to be solved in the field of mining enterprises.Taking Wuhai open-pit Coal Mine as an example,the optimal design and analysis of the inclined layered slope of open-pit coal mine are carried out,and the slope stability of the selected engineering model is analyzed to ensure that the selected model and data are closer to reality.Taking the stability of the slope in the coal mine dip layer as an example,the fault dip angle and strike angle are analyzed to explore the influence of the fault dip angle and strike angle on the stability of the slope.Through the data analysis of 8 working condition models of fault dip angle and 7 working condition models of strike intersection angle,the influence of dip angle change on slope stability coefficient is obtained,and the corresponding protective measures are put forward.