| 断面形状对巷道围岩稳定性影响的数值模拟分析 |
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| 引用本文： | 高富强.断面形状对巷道围岩稳定性影响的数值模拟分析[J].山东科技大学学报(自然科学版),2007,26(2):43-46. |
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| 作者姓名： | 高富强 |
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| 作者单位： | 煤炭科学研究总院,北京开采研究所,北京,100013 |
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| 摘 要： | 利用数值计算方法,研究了断面形状对巷道围岩稳定性的影响。结果表明:断面形状对巷道围岩的稳定性有较大影响。圆弧拱巷道围岩稳定性要远大于矩形巷道。采用矢跨比为0.2的圆弧拱巷道代替矩形巷道,可显著改善巷道围岩应力状况,减小巷道围岩变形量,减少围岩塑性屈服区域,加强巷道围岩的稳定性。
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| 关 键 词： | 巷道断面形状 围岩稳定性 数值分析 |
| 文章编号： | 1672-3767（2007）02-0043-04 |
| 收稿时间： | 2007-01-21 |
| 修稿时间： | 2007-01-21 |
The Effect of Numerical Simulation Analysis of Cross-section Shapes of Roadways on Surrounding Rock Stability |
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| GAO Fu-qiang.The Effect of Numerical Simulation Analysis of Cross-section Shapes of Roadways on Surrounding Rock Stability[J].Journal of Shandong Univ of Sci and Technol: Nat Sci,2007,26(2):43-46. |
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| Authors: | GAO Fu-qiang |
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| Institution: | Beijing Research Institute of Coal Mining, Central Coal Researeh Institute, Beijing 100013, China |
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| Abstract: | The impact of cross-section shape of roadways on the stability of surrounding rocks was analyzed by means of numerical simulation.The results show that the cross-section shapes of roadways strongly influence the stability of surrounding rocks.The surrounding rocks of arched roadways are much more stable than that of rectangular roadways.That the arched roadway with the ratio of 0.2 between arch rise and roadway width is substituted for rectangular roadway can obviously improve the stress state of roadway surrounding rocks,reduce the deformation and the plastic yield area of roadway surrounding rocks,greatly strengthening the stability of roadway surrounding rocks. |
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| Keywords: | cross-section shape of roadway stability of surrounding rock numerical analysis |
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