| 某矿开挖岩质边坡安全评价与治理方法分析 |
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| 引用本文： | 屈春来,张德政,衣瑛.某矿开挖岩质边坡安全评价与治理方法分析[J].金属矿山,2012,41(10):9. |
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| 作者姓名： | 屈春来 张德政 衣瑛 |
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| 作者单位： | 1.北京科技大学土木与环境工程学院；2.金属矿山高效开采与安全教育部重点实验室；3.北京科技大学计算机与通信工程学院；4;鞍钢集团鞍千矿业有限责任公司 |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 以某露天矿岩质边坡为工程背景，运用数值模拟软件FLAC3D对开挖过程中岩质边坡体开挖方向上的应力演化和变形规律进行了数值模拟研究。研究结果表明:采场上盘边坡的稳定性较差，每步开挖对岩体均有破坏性扰动，沿片理的台阶型破坏与整体失稳的可能性较大。提出了削坡减载的边坡治理方案，并采用极限平衡方法分析治理后边坡稳定性，保证露天矿的安全生产。
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| 关 键 词： | 边坡治理 安全评价 稳定性 数值模拟 |
The Safety Evaluation and Treatment of the Excavation of an Open-pit Mine |
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| Qu Chunlai
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Zhang Dezheng
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Yi Ying.The Safety Evaluation and Treatment of the Excavation of an Open-pit Mine[J].Metal Mine,2012,41(10):9. |
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| Authors: | Qu Chunlai Zhang Dezheng Yi Ying |
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| Affiliation: | 1.Civil and Environmental Engineering Institute, University of Science and Technology Beijing；2.State Key Laboratory of High-Efficient Mining and Safety of Metal Mines；3.School of Computer & Communication Engineering, University of Science and Technology Beijing；4.Anqian Mining Industry Co.,Ltd.; |
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| Abstract: | Taken a rock slope of an open-pit mine as an project background, the stress evolution and the law of deformation on the excavation direction of rock slope during the excavation process was simulated by FLAC3D. The result shows that the stability of hanging slope in the mining is poorer, each step of rock mass excavation are destructive disturbance. It is likely that the destruction along the steps occurs and the overall stability loses, putting forward the programs of cutting slope and reducing load slope, and using the limit equilibrium method to analysis of slope stability after management to ensure the safety of open-pit mine production. |
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