| 开采扰动下水平矿柱稳定性数值分析研究 |
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| 引用本文： | 董凯程,于世波,崔松.开采扰动下水平矿柱稳定性数值分析研究[J].矿冶,2015,24(4):1-4. |
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| 作者姓名： | 董凯程 于世波 崔松 |
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| 作者单位： | 北京矿冶研究总院 北京 100070,北京矿冶研究总院 北京 100070,北京矿冶研究总院 北京 100070 |
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| 基金项目： | “十二五”国家科技支撑计划课题(编号：2012BAB01B01) |
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| 摘 要： | 采用数值模拟计算的方法分析了某矿山-290 m水平矿柱在开采扰动过程中的力学效应显现规律。研究结果表明,上部中段采场胶结充填及硐室开挖后,应力向水平矿柱转移;下部中段开采后,水平矿柱整体处于高度应力集中状态,大部分区域都能从开采过程中的拉剪破坏恢复到弹性工作状态。综合分析结果表明,水平矿柱在开采扰动过程中整体稳定性良好。
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| 关 键 词： | 水平矿柱 开采扰动 数值计算 稳定性分析 |
| 收稿时间： | 2014/4/14 0:00:00 |
| 修稿时间： | 2014/4/22 0:00:00 |
Numerical analysis research on horizontal pillar stability under mining disturbance |
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| Dong kai cheng,yu shi bo and cui song.Numerical analysis research on horizontal pillar stability under mining disturbance[J].Mining & Metallurgy,2015,24(4):1-4. |
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| Authors: | Dong kai cheng yu shi bo and cui song |
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| Affiliation: | Beijing General Research Institute of Mining and Metallurgy,Beijing General Research Institute of Mining and Metallurgy,Beijing General Research Institute of Mining and Metallurgy |
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| Abstract: | Analysis of the -290m level isolation pillar stability in mining mechanical effects appeared in the process of mining by the method of numerical simulation. The research results show that stope mining cemented filled and the upper chamber excavated, stress transfer to the isolated pillar; After the mining lower stopes, the isolated pillar in the high stress concentration, most of the region of the pillar will recover from a tensile shear failure state to the elastic state in the process of mining Comprehensive analysis shows that the horizontal pillar is stable in the process of mining disturbance. |
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| Keywords: | horizontal pillar mining disturbance numerical calculation stability analysis |
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