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大型露天矿山边坡岩体稳定性分级分析方法  ( EI收录)   被引量:6

Graded analysis for slope stability assessment of large open-pit mines

文献类型:期刊文献

中文题名:大型露天矿山边坡岩体稳定性分级分析方法

英文题名:Graded analysis for slope stability assessment of large open-pit mines

作者: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]

机构:[1]绍兴文理学院土木工程学院;[2]江西铜业集团德兴铜矿;[3]中国有色金属工业昆明勘察设计研究院有限公司;[4]中国恩菲工程技术有限公司;[5]昆明理工大学国土资源工程学院

年份:2017

卷号:36

期号:11

起止页码:2601

中文期刊名:岩石力学与工程学报

外文期刊名:Chinese Journal of Rock Mechanics and Engineering

收录:CSTPCD、、北大核心2014、EI(收录号:20181605031775)、Scopus(收录号:2-s2.0-85045471948)、CSCD2017_2018、北大核心、CSCD

基金:收稿日期:2017–07–25;修回日期:2017–09–30 基金项目: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) Supported by the National Natural Science Foundation of China(Grant Nos. 41427802 and 41502300) 作者简介:杜时贵(1962–),男,博士,1984 年毕业于中国地质大学地质学专业,现任教授,主要从事岩石结构面粗糙度系数方面的教学与研究工作。 E-mail:dushigui@126.com。通讯作者:雍 睿(1987–),男,2014 年于中国地质大学地质工程专业获博士学位,现任讲师,主要从事岩体结构面力 学性质与边坡工程稳定性评价方面的研究工作。E-mail:yongrui_usx@hotmail.com DOI:10.13722/j.cnki.jrme.2017.1236

语种:中文

中文关键词:边坡工程;矿山边坡;岩体结构面;稳定性

外文关键词:slope engineering;open-pit mine slope;rock joints;stability

中文摘要: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。

外文摘要: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.

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