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DOI:
有色金属(矿山部分):2020,72(4):7-12
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甲玛多金属矿露井联采条件下露天边坡稳定性评价
吴丹1,2, 王志修1, 于世波1
(1.矿冶科技集团有限公司;2.国家金属矿绿色开采国际联合研究中心)
Stability Evaluation of Open-face Slope under Combined Mining Conditions of Jiama Polymetallic Mine
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投稿时间:2020-02-27    修订日期:2020-04-02
中文摘要: 为了研究甲玛多金属矿在露天-地下联合开采工况下,地下开采对露天矿边坡稳定性的影响,本文采用数值模拟方法,结合该矿山工程地质条件及采矿方法,建立大型三维地质模型进行计算分析。分析结果表明,大规模地下充填开采后顶板覆岩产生一定程度的下沉,在矿体回采及充填过程中,对于覆岩的支撑作用主要靠盘区柱及盘区周边的围岩实现。地下矿体回采结束后,角岩露天坑的西边帮区域变形相对剧烈区域,但该区域变形量较小。因此,大规模地下充填开采对于露天边坡的稳定性影响甚微。
Abstract:In order to study the influence of underground mining on the stability of open pit slope under open-underground combined mining conditions, this paper uses numerical simulation method, combined with the engineering geological conditions and mining methods of the mine to establish a large-scale three-dimensional geological model. Perform calculation analysis. The analysis results show that the roof overburden after a large-scale underground filling mining has a certain degree of subsidence. During the mining and filling process of the ore body, the supporting effect on the overburden is mainly achieved by the surrounding column and the surrounding rock around the panel. After the mining of the underground ore body is completed, the western side of the crater pit is deformed relatively strongly, but the deformation of the area is small. Therefore, large-scale underground filling mining has little effect on the stability of open slopes.
文章编号:     中图分类号:TD353    文献标志码:
基金项目:国家自然科学基金(编号:41602365);国家重点研发计划(2016YFC0600709); 第一
引用文本:
吴丹,王志修,于世波.甲玛多金属矿露井联采条件下露天边坡稳定性评价[J].有色金属(矿山部分),2020,72(4):7-12.
WU Dan,WANG Zhixiu,YU Shibo.Stability Evaluation of Open-face Slope under Combined Mining Conditions of Jiama Polymetallic Mine[J].NONFERROUS METALS(Mining Section),2020,72(4):7-12.

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