| 矿柱崩落法处理采空区的数值模拟 |
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| 引用本文： | 李俊平 周创兵 孔建 彭作为 盛水清. 矿柱崩落法处理采空区的数值模拟[J]. 矿冶, 2004, 13(4): 8-12 |
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| 作者姓名： | 李俊平 周创兵 孔建 彭作为 盛水清 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点实验室,武汉,430072;武汉大学水资源与水电工程科学国家重点实验室,武汉,430072;武汉大学水资源与水电工程科学国家重点实验室,武汉,430072;武汉大学水资源与水电工程科学国家重点实验室,武汉,430072;武汉大学水资源与水电工程科学国家重点实验室,武汉,430072 |
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| 基金项目： | 国家自然科学基金重点项目(50239070) |
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| 摘 要： | 非法开采在木架山下形成了37 5万m2的采空区,提出用矿柱崩落法处理W143～W150勘探线间的采空区。应用三维有限元程序ANSYS和三维水力耦合分析程序EPSCA3D模拟了采空区处理过程。结论表明,按设计崩落矿柱,可引起顶板冒落,不会发生大规模的地表沉陷和岩体移动,不会影响后续生产安全。由于水力耦合,采空区处理引起岩移量降低。
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| 关 键 词： | 采空区处理 矿柱崩落 有限元分析 水力耦合 |
| 文章编号： | 1005-7854(2004)04-0008-05 |
NUMERICAL SIMULATION ON DISPOSAL OF ABANDONED STOPES BY MEANS OF ORE PILLAR CAVING |
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| LI Jun-ping,ZHOU Chuang-bing,KONG Jian,PENG Zuo-wei,SHENG Yong-qing urces and Hydropower Engineering Science,Wuhan University,Wuhan,China. NUMERICAL SIMULATION ON DISPOSAL OF ABANDONED STOPES BY MEANS OF ORE PILLAR CAVING[J]. Mining & Metallurgy, 2004, 13(4): 8-12 |
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| Authors: | LI Jun-ping ZHOU Chuang-bing KONG Jian PENG Zuo-wei SHENG Yong-qing urces Hydropower Engineering Science Wuhan University Wuhan China |
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| Affiliation: | LI Jun-ping,ZHOU Chuang-bing,KONG Jian,PENG Zuo-wei,SHENG Yong-qing urces and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China) |
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| Abstract: | A lot of gently inclined abandoned stopes with a total area of 375000m~2 were formed under the Mujia Hill because of unlawful mining. It is put forward that the abandoned stopes between prospecting lines of W143 and W150 are disposed by means of ore pillar caving. The numerical simulation on the process of disposing the abandoned stopes is carried out by use of two 3-D codes,ANSYS and EPSCA3D. The results show that if ore pillars are blasted according to the mining plan, the caving of stope roof will occurred but the large-scale surface subsidence and rock movement won′t happen,thus unaffecting the safety of subsequent mining production. Because of seepage-stress coupling,the rock movement resulted from disposal of abandoned stopes is allayed. |
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| Keywords: | Abandoned-stope disposal Ore-pillar caving Finite-element analysis Seepage-stress coupling |
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