大型露天矿山边坡岩体稳定性分级分析方法

发布时间：2019-01-30 07:25

【摘要】：基于大型露天矿山边坡的构成要素与规模大小,将其划分为总体边坡、组合台阶边坡、台阶边坡3个层次;根据结构面规模与各层次边坡规模的几何关系,将结构面划分为贯穿结构面、非贯穿结构面、小规模结构面3个层次。从岩体结构控制论角度,认为不同空间位置、不同规模结构面对不同层次边坡的岩体稳定性影响存在差异性,提出结构面空间位置与边坡部位相匹配、结构面规模与边坡规模相匹配开展大型露天矿山边坡岩体稳定性分级分析的新思路。重点介绍大型露天矿山边坡岩体工程稳定性分级分析方法,按照结构面空间位置与边坡部位的匹配性、结构面规模与边坡规模的匹配性,依次对露天矿山的总体边坡、组合台阶边坡、台阶边坡进行分层次的岩体稳定性分析,系统全面地找出控制边坡稳定的关键性结构面及其组合,实现露天矿山边坡岩体稳定性的精细分析。结合具体案例,分别从整体稳定性、局部稳定性两方面评价了露天矿山的总体边坡、组合台阶边坡、台阶边坡的稳定性。大型露天矿山边坡岩体工程稳定性分级分析为开展边坡岩体稳定性的精确计算创造了必要的条件。
[Abstract]:Based on the composition and scale of large open pit slope, it is divided into three levels: the overall slope, the combined step slope and the step slope. According to the geometric relationship between the scale of structural plane and the scale of slope at each level, the structural plane is divided into three levels: penetrating structural plane, non-penetrating structural plane and small scale structural plane. From the point of view of structural control theory of rock mass, it is considered that there are differences in the influence of different spatial positions and structures of different scales on rock mass stability of slope at different levels, and it is proposed that the spatial position of structural plane matches the position of slope. A new method for classification analysis of rock mass stability of slope in large open pit mines is put forward in which the scale of structure plane is matched with the scale of slope. This paper mainly introduces the classification analysis method of rock mass engineering stability of slope in large open pit mine. According to the matching between the space position of structure plane and slope position, the matching of structure plane scale and slope scale, the overall slope of open pit mine is sequentially analyzed. The stability of rock mass is analyzed by combining step slope and step slope, and the key structural plane and its combination to control slope stability are found out systematically and comprehensively, and the fine analysis of rock mass stability of open pit mine slope is realized. Combined with specific cases, the overall slope, combined step slope and step slope stability of open-pit mine are evaluated from two aspects: overall stability and local stability. The classification analysis of slope rock mass engineering stability in large open pit mines creates necessary conditions for the accurate calculation of slope rock mass stability.
【作者单位】：绍兴文理学院土木工程学院;江西铜业集团德兴铜矿;中国有色金属工业昆明勘察设计研究院有限公司;中国恩菲工程技术有限公司;昆明理工大学国土资源工程学院;
【基金】：国家自然科学基金资助项目(41427802);国家自然科学基金青年基金项目(41502300)~~
【分类号】：TD854.6

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