| 植物根系的加筋作用对浅埋公路隧道施工稳定的影响 |
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| 引用本文： | 汤劲松,刘松玉,童立元. 植物根系的加筋作用对浅埋公路隧道施工稳定的影响[J]. 东南大学学报(自然科学版), 2009, 39(2) |
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| 作者姓名： | 汤劲松 刘松玉 童立元 |
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| 作者单位： | 东南大学岩土工程研究所,南京,210096;石家庄铁道学院土木工程分院,石家庄,050043;东南大学岩土工程研究所,南京,210096 |
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| 摘 要： | 考虑不同类型植物根系的加筋效果,分别采用浅根加筋和深根锚固及其联合加筋模型,通过三维数值模拟分析,对比研究发现:植物根系的浅层加筋作用以及存在主根、侧根和须根的木本植物根系联合加筋作用对于软弱岩体浅埋公路隧道的施工稳定能够产生积极有利影响,而单纯主根型木本植物根系加筋对浅埋隧道施工稳定的影响不明显.对于浅层加筋来说,当隧道的埋深在植物根系影响深度范围之内时,植物根系的加筋作用对浅埋隧道施工稳定的影响效果最好.
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| 关 键 词： | 浅埋隧道 施工稳定 植物根系加筋 浅层加筋 深层锚固 |
Reinforcement effect of plant roots on construction stability of shallow highway tunnel |
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| Tang Jinsong,Liu Songyu,Tong Liyuan. Reinforcement effect of plant roots on construction stability of shallow highway tunnel[J]. Journal of Southeast University(Natural Science Edition), 2009, 39(2) |
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| Authors: | Tang Jinsong Liu Songyu Tong Liyuan |
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| Affiliation: | 1 Institute of Geotechnical Engineering;Southeast University;Nanjing 210096;China;2 School of Civil Engineering;Shijiazhuang Railway Institute;Shijiazhuang 050043;China |
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| Abstract: | The reinforcement influence from different type of plant roots are taken into account,and the reinforcement effect of shallow roots,the anchorage function of deep roots,and their combination reinforcement model were analyzed,respectively.Based on 3D numerical simulation,it is found that the shallow reinforcement effect of plant roots and the combining reinforcement effect of woody plant roots having taproot,side roots and fibre roots show positive effect for construction stability of shallow highway tunnel ... |
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| Keywords: | shallow tunnel construction stability reinforcement of plant roots shallow reinforcement deep anchorage |
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