| 金川贫矿区自然崩落法采场底部结构的稳定性 |
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| 引用本文： | 王宁,韩志型.金川贫矿区自然崩落法采场底部结构的稳定性[J].有色金属,2004,56(3):79-82. |
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| 作者姓名： | 王宁 韩志型 |
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| 作者单位： | 西南科技大学,四川,绵阳,621002 |
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| 基金项目： | 国家"九五"科技攻关项目(96-117-01-01) |
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| 摘 要： | 采用三维有限元弹塑性数值模拟方法 ,分析金川贫矿区高应力破碎岩体自然崩落法开采过程中底部结构的稳定性。结果表明 ,随矿岩崩落开采 ,崩落区下方岩层出现较大范围的塑性破坏区和拉破坏区。巷道采取多次让压支护措施 ,能确保底部结构的稳定。
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| 关 键 词： | 采矿工程 稳定性 数值模拟 底部结构 自然崩落法 |
| 文章编号： | 1001-0211(2004)03-0079-04 |
| 修稿时间： | 2003年3月18日 |
Base Stability of Jingchuan Lean Ore Area Mining by Natural Caving Method |
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| WANG Ning,HAN Zhi-xing.Base Stability of Jingchuan Lean Ore Area Mining by Natural Caving Method[J].Nonferrous Metals,2004,56(3):79-82. |
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| Authors: | WANG Ning HAN Zhi-xing |
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| Abstract: | The stability of the base structure for the fracture rock-mass of great stress area in Jinchuan lean ore area mining by natural caving process is analyzed by the three-dimensional elastic-plasticity finite element numerical analogy. The results show that the great plastic yield areas and pull failure areas are formed in the base structure with caved area extends. The stability of the base structure for nature caved mining can be assured by use of the gradual supports of draw drifts. |
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| Keywords: | mining engineering stability numerical analogy base structure natural caving method |
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