| 软岩巷道合理支护时间模拟研究 |
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| 引用本文： | 王小平. 软岩巷道合理支护时间模拟研究[J]. 采矿与安全工程学报, 2006, 23(1): 103-106 |
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| 作者姓名： | 王小平 |
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| 作者单位： | 河海大学,岩土工程研究所,江苏,南京,210098 |
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| 摘 要： | 以河南义马常村煤矿掘前预采卸压试验的21盘区延深下山为研究对象，采用Bingham硬化模型及德鲁克-普拉格屈服准则，利用二维弹-黏塑性有限元理论进行数值模拟，揭示出巷道围岩变形随时间的变化规律，确定了巷道合理支护时间，并对巷道围岩支护参数进行了敏感性分析，揭示出围岩支护参数对巷道围岩稳定性的影响．模拟结果表明，将二雏弹-黏塑性有限无理论用于软岩巷道的优化设计具有重要意义．
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| 关 键 词： | 掘前预采 弹-黏塑性 合理支护时间 参数敏感性 |
| 文章编号： | 1673-3363(2006)01-0103-04 |
| 修稿时间： | 2005-11-26 |
Time Simulation of Rational Support for Soft Rock Roadway |
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| WANG Xiao-ping. Time Simulation of Rational Support for Soft Rock Roadway[J]. Journal of Mining and Safety Engineering, 2006, 23(1): 103-106 |
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| Authors: | WANG Xiao-ping |
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| Abstract: | The deformation-time law of roadway of Changcun coal mine in Henan province was simulated by means of 2D elasto-visco-plastic finite element theory with the Bingham hardening model and Drucker-Prager yield rule criterion.The rational support time of soft rock roadway was determined,and the sensitivity of some parameters was analyzed.In addition,the influence of support parameters on the stability of surrounding rock was also revealed.The results show that the application of 2D elasto-visco-plastic finite element theory in optimization of support parameters is quite significant. |
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| Keywords: | pre-mining before digging elasto-visco-plastic rational support time parameter sensitivity |
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