| 岩体原位测试中反力对试验影响程度的二维有限元分析 |
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| 引用本文： | 刘洋,赵明阶,贺林林.岩体原位测试中反力对试验影响程度的二维有限元分析[J].重庆交通大学学报(自然科学版),2011,30(4):803-806,811. |
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| 作者姓名： | 刘洋 赵明阶 贺林林 |
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| 作者单位： | 1. 重庆交通大学水利水运工程教育部重点实验室,重庆 400074;水利部岩土力学与工程重点实验室重庆岩基研究中心,重庆 400014
2. 重庆交通大学水利水运工程教育部重点实验室,重庆,400074 |
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| 基金项目： | 重庆交通大学水利水运工程教育部重点实验室开放基金项目(SLK2007B03) |
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| 摘 要： | 采用二维有限元方法,模拟了不同质量级别(Ⅰ、Ⅱ、Ⅲ、Ⅳ、V类)的岩体在不同反力锚杆间距和不同应力状态下的变形试验；分析了锚杆反力对试验点所造成的变形量.研究表明:由锚杆对岩体施加反力所导致的试验点减少的变形量,在相同的岩体质量级别和反力间距情况下,随着应力的增大而增大；在相同的反力间距和应力状态情况下,随着岩体质量级别...
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| 关 键 词： | 岩体 原位试验 反力 二维有限元 |
2D FEM Analysis of Influence Degree Caused by Reaction Force in Rock Mass In-situ Test |
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| LIU Yang,ZHAO Ming-jie,HE Lin-lin.2D FEM Analysis of Influence Degree Caused by Reaction Force in Rock Mass In-situ Test[J].Journal of Chongqing Jiaotong University,2011,30(4):803-806,811. |
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| Authors: | LIU Yang ZHAO Ming-jie HE Lin-lin |
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| Institution: | 1 (1.Key Laboratory of Ministry of Education on Hydraulic and Water Transport Engineering,Chongqing Jiaotong University,Chongqing 400074,China;2.Chongqing Rock Foundation Research Center,Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources,Chongqing 400074,China) |
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| Abstract: | 2D FEM method was adopted to simulate the deformation tests about the kinds ofⅠ、Ⅱ、Ⅲ、Ⅳ、Ⅴ rock mass in different reaction force of anchor distance and different stress state.Deformation on the test position caused by the reaction force of anchor was analyzed according to the test.It is concluded that in the case of same rock mass quality and reaction force distance,the reduced deformation of the test points caused by the reaction force of the anchor to the rock mass increases with the stress increasing.In the case of same reaction force distance and stress state,the reduced deformation decreases with the improvement of rock mass quality.In the case of same rock mass quality and stress state,the reduced deformation decreases with the increase of reaction force distance. |
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| Keywords: | rock mass in-situ test reaction force 2D FEM |
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