摘要
以大南湖露天煤矿非工作帮(东北帮)和工作帮(东帮和南帮)为研究对象,分别对露天矿边坡破坏模式和变形特征进行分析;应用FLAC3D软件分析了露天矿边坡的变形破坏机理。研究结果表明:大南湖矿区边坡在剥离开采的作用下引起剥落、崩落、滑动、沉降、流动等明显的滑动破坏模式,非工作帮边坡破坏主要沿基底岩层滑动;非工作帮和工作帮(东帮)边坡变形破坏主要以水平方向变形为主,而工作帮(南帮)边坡则以竖直方向变形为主;非工作帮的变形破坏主要是在原始地表风化形成的边坡区域,而工作帮的变形破坏主要是在剥离形成的岩石边坡区域。
This article takes the non-working slope(northeast slope)and working slope(east slope and south slope)of Dananhu Open-pit Coal Mine as the research objects,analyzes slope failure modes and deformation characteristics in the open-pit mine.At the same time,we apply FLAC3D software to analyze the deformation failure mechanism of slope.The results show that the slope in Dananhu mining area has obvious sliding failure modes such as peeling,caving,sliding,settlement and flow under the action of stripping mining.Non-working slope failure mainly slides along the basement rock.The deformation failure of the non-working slope and the working slope(east slope)are mainly in the horizontal direction,while the working slope(south slope)is mainly in the vertical direction.The deformation failure of the non-working slope is mainly in the slope area formed by weathering of the original surface,while the deformation failure of the working slope is mainly in the area of the rock slope formed by stripping.
作者
陆卫国
LU Weiguo(Dananhu No.2 Open-pit Mine,State Grid Energy Hami Coal Power Co.,Ltd.,Hami 839000,China)
出处
《露天采矿技术》
CAS
2020年第5期9-12,共4页
Opencast Mining Technology
关键词
边坡稳定性
破坏模式
变形破坏机理
非工作帮
工作帮
slope stability
failure mode
deformation and failure mechanism
non-working slope
working slope
