| 露天转地下开采中顶柱稳定性分析 |
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| 引用本文： | 马天辉,唐春安,杨天鸿,林鹏. 露天转地下开采中顶柱稳定性分析[J]. 东北大学学报(自然科学版), 2006, 27(4): 450-453. DOI: - |
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| 作者姓名： | 马天辉 唐春安 杨天鸿 林鹏 |
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| 作者单位： | 1. 东北大学,资源与土木工程学院,辽宁,沈阳,110004
2. 清华大学,水利水电工程系,北京,100084 |
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| 基金项目： | 中国科学院资助项目，中国博士后启动基金 |
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| 摘 要： | 结合唐钢石人沟铁矿的具体地质条件、采矿条件、岩体的结构特征及力学性质测试,首次借助MSC.PATRAN和MSC.NASTRAN三维数值分析软件对整个矿区进行建模分析,通过反复调整模型参数,分别根据提出的9种设计方案进行模拟分析对比,最后得出顶柱设置在-6 m水平(方案9)基本可以稳定.同时提出确保顶柱稳定的详细的采矿方案、措施、建议以及有效地防止矿体突冒控制技术措施,为其他矿山露天转地下开采中的顶柱尺寸留设提供可靠的分析方法和科学依据.
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| 关 键 词： | 稳定性 露天转地下开采 顶柱 数值分析 突冒 |
| 文章编号： | 1005-3026（2006）04-0450-04 |
| 收稿时间： | 2005-03-28 |
| 修稿时间： | 2005-03-28 |
Analysis on Stability of Top Pillar When Coming into Underground Mining from Open-Pit |
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| MA Tian-hui,TANG Chun-an,YANG Tian-hong,LIN Peng. Analysis on Stability of Top Pillar When Coming into Underground Mining from Open-Pit[J]. Journal of Northeastern University(Natural Science), 2006, 27(4): 450-453. DOI: - |
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| Authors: | MA Tian-hui TANG Chun-an YANG Tian-hong LIN Peng |
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| Affiliation: | (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; (2) Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | Based on the site-specific conditions,the physico-mechanical properties and structural features of rock and mining conditions,the 3-D numerical analysis softwares MSC.PATRAN and MSC.NASTRAN were first used to model wholly the Shirengou Iron Mine.Readjusting repeatedly the parameters of the models,the 9 proposed schemes were simulated and analyzed individually and compared with each other.It was concluded that the 9th scheme can make the top pillar stable,and an optional mining program and some measures were proposed in detail to control effectively the spalling and caving of rock mass.It also provided a reliable analytic method and scientific evidence for choosing reasonable dimension of top pillar when coming into underground mining from open-pit. |
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| Keywords: | stability underground mining from open-pit top pillar numerical analysis spalling |
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