白云鄂博铁矿露天共境界扩帮开采边坡稳定性分析  

Stability Analysis of Open-pit Joint Boundary Expansion Mining Slope in Baiyun Ebo Iron Mine

作　　者：宋磊 Song Lei(China Henan International Cooperation Group Co.,Ltd.,Zhengzhou Henan 450004,China)

机构地区：[1]中国河南国际合作集团有限公司,河南郑州450004

出　　处：《山西冶金》2024年第10期112-114,共3页Shanxi Metallurgy

摘　　要：白云鄂博铁矿露天共境界扩帮开采边坡稳定性分析旨在评估和优化东矿区边坡的稳定性,确保采矿安全。通过地质状况分析、三维数值模拟方法(FLAC3D软件)和强度折减法,研究了不同扩帮方案对边坡稳定性的影响。在考虑的4种扩帮方案中,方案一(坡角为14°,坡高为438 m)和方案二(坡角为41°,坡高为498 m)具有较好的稳定性。其中,方案一剪切破坏程度较小,安全系数最高。结果表明,较小的坡角和坡高有助于提高边坡稳定性,为矿区安全生产提供了科学依据。The stability analysis of the open-pit joint boundary expansion mining slope in Baiyun Ebo Iron Mine aims to evaluate and optimize the stability of the slope in the eastern mining area to ensure mining safety.The influence of different expansion schemes on slope stability was studied through geological condition analysis,three-dimensional numerical simulation method(Flac 3D software),and strength reduction method.The results show that among the four considered expansion schemes,Scheme1(slope angle 14°,slope height 438 m)and Scheme 2(slope angle 41°,slope height 498 m)have good stability performance.Among them,Scheme 1 has a smaller degree of shear failure and the highest safety factor.The conclusion indicates that smaller slope angles and heights help improve slope stability and provide scientific basis for safe production in mining areas.

关 键 词：边坡稳定性 露天共境界 扩帮开采 

分 类 号：TD854[矿业工程—金属矿开采]