| 基于FLAC3D的节理岩体巷道锚注加固数值模拟 |
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| 引用本文： | 康志强,贾玉波,张艳博.基于FLAC3D的节理岩体巷道锚注加固数值模拟[J].金属矿山,2013,42(4):61. |
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| 作者姓名： | 康志强 贾玉波 张艳博 |
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| 作者单位： | 1.河北联合大学矿业工程学院；2.河北省矿业开发与安全技术重点实验室 |
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| 基金项目： | 国家自然科学基金项目，河北省自然科学基金项目，河北联合大学培育基金项目，河北省教育厅项目 |
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| 摘 要： | 通过对节理面锚注加固抗剪切强度的力学推导，得出锚注加固在节理岩体巷道中的作用机理以及锚杆和注浆的联合应用增强和加固了围岩的支撑能力。通过FLAC3D大型数值模拟软件，对节理化软岩巷道未支护、锚注加固时的岩体巷道围岩进行数值模拟分析研究，锚注加固对于改善节理化软岩巷道围岩的受力状况、限制巷道围岩变形量具有重大的作用，对节理裂隙岩体进行锚注加固是一种有效的节理岩体支护方法。
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| 关 键 词： | 节理岩体巷道 锚注加固 压力注浆 数值模拟 |
Numerical Simulation Research of Bolt Grouting Reinforcement to Jointed Rock based on FLAC3D |
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| Kang Zhiqiang
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Jia Yubo
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Zhang Yanbo.Numerical Simulation Research of Bolt Grouting Reinforcement to Jointed Rock based on FLAC3D[J].Metal Mine,2013,42(4):61. |
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| Authors: | Kang Zhiqiang Jia Yubo Zhang Yanbo |
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| Affiliation: | 1.College of Mining Engineering, Hebei United University；2.HeBei Province Key Laboratory of Mining Development and Safety Technique; |
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| Abstract: | Through the mechanical derivation on bolt grouting reinforcement shearing resistance strength of the joint surface, the action mechanism of bolt grouting reinforcement in jointed rock roadway is obtained and the self-supporting ability of rock is enhanced by joint application of the anchor bolt and the grouting.The numerical simulation analysis on the jointing soft rock roadway with no supports and bolt grouting reinforcement is made by using the FLAC3D software.It indicated that bolt grouting reinforcement plays a significant role in improving jointing soft rock roadway force status and limiting roadway rock deformation.Therefore, it concluded that bolt grouting reinforcement is an effective supporting for the jointed rock mass. |
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| Keywords: | Jointed rock roadway Bolt grouting reinforcement Pressure grouting Numerical simulation |
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