| 卸荷条件下锚杆对岩体变形参数的影响 |
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| 引用本文： | 冯文娟,琚晓冬.卸荷条件下锚杆对岩体变形参数的影响[J].三峡大学学报(自然科学版),2005,27(6):527-531. |
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| 作者姓名： | 冯文娟 琚晓冬 |
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| 作者单位： | 三峡大学,土木水电学院,湖北,宜昌,443002 |
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| 摘 要： | 采用有限元分析软件ADINA对含节理的岩体模型进行二维的有限元数值计算，岩体在加载和卸载条件下，其力学特性有本质的区别．重点分析了在卸荷条件下，锚杆的数量和倾角的变化对岩体变形参数如变形模量和泊松比的影响，揭示了岩体变形参数变化趋势并说明了产生变化的原因．
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| 关 键 词： | 卸荷 锚杆 等效变形参数 变形模量 泊松比 |
| 文章编号： | 1672-948X(2005)06-0527-04 |
| 修稿时间： | 2005年7月27日 |
Influence of Anchor Bar on Deformation Parameters of Unloading Rock Mass |
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| Feng Wenjuan,Ju Xiaodong.Influence of Anchor Bar on Deformation Parameters of Unloading Rock Mass[J].Journal of China Three Gorges University(Natural Sciences),2005,27(6):527-531. |
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| Authors: | Feng Wenjuan Ju Xiaodong |
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| Abstract: | Anchor bar is one of the supporting measures commonly used in geotechnical engineering.The finite element analysis software ADINA is applied to make a planar finite element numerical calculation of jointed rock mass.Under loading and unloading,the rock mass has different mechanical characters.It is analyzed that the rock's deformation parameters such as Young's modulus and Poisson's ratio are influenced by the change of the number and obliquity of anchor bars.The change trend of rock's deformation parameters is concluded and the reasons that cause the change are explained. |
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| Keywords: | unloading anchor bar equivalent deformation parameter young's modulus poisson's ratio |
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