摘要
为探究含有多层级软弱互层的露天矿边坡稳定性优化问题,基于传递系数法与强度折减法,以白音华4#露天煤矿为工程实例,按由上而下的空间顺序划分边坡稳定性评价区段,通过控制各级弱层载荷,逐区段优化边坡稳定性,阐明了针对性优化方法。结果表明:层级软弱互层的上覆载荷分布与到边坡临空面距离是控制这类边坡稳定性的主要因素;阐明的优化方法经传统条分法与数值模拟验证表现出良好的评价效果。
In order to explore the slopes stability optimization problem of open-pit mine with multiple layers of weak interlayers,based on the transfer coefficient method and the strength reduction method,we take Baiyinhua 4#Open-pit Coal Mine as an engineering example,and divide the slopes stability evaluation section according to the spatial sequence from top to bottom.By controlling the load of weak layers at all levels,the article optimizes the slope stability section by section,and clarifies the targeted optimization methods.The results show that the distribution of the overlying load of the weak interlayer and the distance to the side surface of the slope are the main factors that control the stability of this type of slope;the clarified optimization method has been validated by the traditional slice method and numerical simulation.
作者
张禹
吕文伟
ZHANG Yu;LYU Wenwei(Har'erwusu Open-pit Mine,China Energy Group Shenhua Energy Co.,Ltd.,Ordos 010300,China)
出处
《露天采矿技术》
CAS
2020年第6期80-83,共4页
Opencast Mining Technology
关键词
露天矿
软弱互层
边坡稳定性
传递系数法
强度折减法
open-pit mine
weak interlayer
slope stability
transfer coefficient method
strength reduction method
