| 深部极软岩巷道补充锚注加固机理及应用 |
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| 引用本文： | 周恒,漆泰岳,于加云.深部极软岩巷道补充锚注加固机理及应用[J].现代隧道技术,2006,43(5):55-59. |
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| 作者姓名： | 周恒 漆泰岳 于加云 |
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| 作者单位： | 西南交通大学土木工程学院,成都,610031 |
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| 摘 要： | 文章采用有限差分软件FLAC~(2D),对深部极软岩巷道进行辅助锚注支护前后围岩变形破坏规律进行了数值模拟,对锚注支护施作前后锚杆的锚固力、围岩的位移及塑性区的变化情况等进行了系统对比。结果表明,辅助锚注支护显著提高了围岩的强度和承载能力,有效地控制了深部极软岩巷道的围岩变形。
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| 关 键 词： | 软岩巷道 锚注支护 树脂锚杆 数值模拟 |
| 文章编号： | 1009-6582(2006)05-0055-05 |
Mechanism and application of the supplementary bolt -grouting strengthening for a gallery embedded in deep soft rock |
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| Zhou Heng,Qi Taiyue,Yu Jiayun.Mechanism and application of the supplementary bolt -grouting strengthening for a gallery embedded in deep soft rock[J].Modern Tunnelling Technology,2006,43(5):55-59. |
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| Authors: | Zhou Heng Qi Taiyue Yu Jiayun |
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| Abstract: | The paper adopts a finite difference software FLAC~(2D) to perform the numerical simulation for the behav- ior of a gallery embedded in deep soft rock before and after the supplementary bolt-grouting and to reveal the rule of deformation and yield of the surrounding rock.Contrasts are made for the anchorage forces in the bolts,deforma- tions and plastic zones in the surrounding rock before and after the installation of bolt-grouting support.Results indicate that the bolt-grouting support helps to increase the strength and bearing capacity of the surrounding rock and to control its deformation effectively. |
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| Keywords: | Soft rock gallery Bolt-grouting support Resin bolts Numerical analysis |
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