| 软弱围岩下小净距隧道中岩柱加固方法分析 |
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| 引用本文： | 黄志义,叶冬明,王金昌.软弱围岩下小净距隧道中岩柱加固方法分析[J].世界科技研究与发展,2010,32(2):209-212. |
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| 作者姓名： | 黄志义 叶冬明 王金昌 |
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| 作者单位： | 浙江大学交通工程研究所,杭州,310058 |
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| 摘 要： | 建立基于Drunker-Prager本构模型小净距隧道弹塑性三维模型，进行室内比尺模型试验的数值模拟。比较数值模拟和室内试验之间的结果，验证数值模型试验的有效性。通过对围岩的位移、塑性区、整体塑性能释放、最大塑性应变分析，比较上、中、下岩盘等不同加固工况的优劣，为实际施工加固方案择提供技术参考。
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| 关 键 词： | 小净距隧道 加固方法 室内比尺试验与数值模拟 中岩柱 塑性应变与塑性能 |
Analysis on Reinforcement of Middle Rock Pillar of Parallel Tunnel in the Weak Rock |
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| HUANG Zhiyi,YE Dongming,WANG Jinchang.Analysis on Reinforcement of Middle Rock Pillar of Parallel Tunnel in the Weak Rock[J].World Sci-tech R & D,2010,32(2):209-212. |
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| Authors: | HUANG Zhiyi YE Dongming WANG Jinchang |
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| Institution: | ( Transportation Engineering Research Institute, Zhejiang University, Hangzhou 310058 ) |
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| Abstract: | Applying constitutive model of Drunker-Prager,3D elastoplastic numerical calculation model of parallel tunnel middle is setup to simulate the indoor scale experiment. Comparing the data from the model and the experimentation,the model is testified to be available. Con-sidering displacement, plastic area, energy of plastic strain and the max plastic strain, the difference from the reinforcement of up, mid and down parts of middle rock pillar have been discussed,which provides technique guideline to the practical construction. |
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| Keywords: | parallel tunnel reinforcement indoor scale experimentation and numerical calculation middle rock pillar plastic strain and ener-gy of plastic strain |
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