| 露天铁矿边坡稳定性分析方法 |
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| 引用本文： | 武震,李文秀,雷振,郭阿媛,刘南北. 露天铁矿边坡稳定性分析方法[J]. 矿冶工程, 2017, 37(1): 18-20. DOI: 10.3969/j.issn.0253-6099.2017.01.005 |
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| 作者姓名： | 武震 李文秀 雷振 郭阿媛 刘南北 |
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| 作者单位： | 河北大学 建筑工程学院, 河北 保定 071002 |
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| 基金项目： | 河北大学研究生创新资助项目(X2016083) |
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| 摘 要： | 采用模糊测度方法、有限元法及Bishop法对露天矿节理化边坡的稳定性进行了探讨, 分析了在地下水影响下边坡稳定性随坡角及坡高的变化规律。研究结果表明, 坡角达到45°时, 最大失稳模糊概率为0.108 8, 有限元法和简化Bishop法计算的安全系数分别为1.004 0和1.036 0。在保证合理坡角的前提下, 坡高对边坡稳定性的影响是有限的。本文提出的综合分析方法可为今后露天采场的合理坡度以及合理矿山境界的确定提供一定参考依据。
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| 关 键 词： | 露天铁矿 边坡稳定性 地下水 坡度 模糊测度 |
| 收稿时间： | 2016-09-20 |
Stability Analysis Method for Slope of Open-pit Iron Mine |
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| WU Zhen,LI Wen-xiu,LEI Zhen,GUO A-yuan,LIU Nan-bei. Stability Analysis Method for Slope of Open-pit Iron Mine[J]. Mining and Metallurgical Engineering, 2017, 37(1): 18-20. DOI: 10.3969/j.issn.0253-6099.2017.01.005 |
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| Authors: | WU Zhen LI Wen-xiu LEI Zhen GUO A-yuan LIU Nan-bei |
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| Affiliation: | College of Civil Engineering and Architecture, Hebei University, Baoding 071002, Hebei, China |
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| Abstract: | For analyzing the stability of jointed slope in open-pit iron mine, methods of fuzzy measure, finite element and the simplified Bishop formula were adopted to analyze stability changes of the slope with variant angle and height under influence of groundwater. It is found that, with the slope at an angle of 45°, the maximum fuzzy probability of unstability is 0.108 8, and the safety factors obtained from the finite element and Bishop methods are 1.004 0 and 1.036 0, respectively. It is concluded that slope height will bring a limited influence on stability of slope with a reasonable slope angle. Such comprehensive analysis method proposed in this paper may be of reference for determining rational slope angle and cut-off of open pit in the future. |
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| Keywords: | open-pit iron mine slope stability groundwater slope angle fuzzy measure |
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