大型露天矿山边坡岩体稳定性分级分析方法

doi:10.13722/j.cnki.jrme.2017.1236

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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。

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	杜时贵1
	雍睿1
	陈咭扦1
	夏才初1
	李国平2
	刘文连3
	刘育明4
	刘昊5

关键词 ：边坡工程, 矿山边坡, 岩体结构面, 稳定性

Abstract：Large open-pit mine slopes were classified into the entire，composite-bench and single bench slopes according to their compositions and scales. The rock joints were then divided into three categories based on the joint size and the relationship with the slope at different levels：penetrating joints，non-penetrating joints and small-sized joints. The spatial locations and scales of rock joints have various influences on different types of mine slopes due to the controlling effect of rock mass structure. A graded analysis method for the stability assessment of open-pit mine slopes was suggested. The spatial locations of rock joints should match the corresponding part on the slope，and the rock joint scale should match the slope scale. According to the matching performance on the relative spatial locations and sizes，the stabilities of the entire slope，composite-bench slopes and all single bench slopes were systematically analyzed to find out the key joints and their combinations. The stabilities of the entire slope，the composite-bench slope and the single bench slope were analyzed from global and local aspects through the case study. The suggested method can give the necessary conditions for accurately evaluating the slope stabilities of large open-pit mines.

Key words： slope engineering')" href="#">

slope engineering open-pit mine slope rock joints stability

引用本文:

杜时贵1，雍睿1，陈咭扦1，夏才初1，李国平2，刘文连3，刘育明4，刘昊5. 大型露天矿山边坡岩体稳定性分级分析方法[J]. 岩石力学与工程学报, 2017, 36(11): 2601-2611.
DU Shigui1，YONG Rui1，CHEN Jiqian1，XIA Caichu1，LI Guoping2，LIU Wenlian3，LIU Yuming4，LIU Hao5. Graded analysis for slope stability assessment of large open-pit mines. , 2017, 36(11): 2601-2611.

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http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2017.1236 或 http://www.rockmech.org/CN/Y2017/V36/I11/2601

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