| 弹塑性本构模型计算冻结壁应力场和位移场 |
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| 引用本文： | 李栋伟 汪仁和. 弹塑性本构模型计算冻结壁应力场和位移场[J]. 低温工程, 2005, 0(5): 53-55,58 |
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| 作者姓名： | 李栋伟 汪仁和 |
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| 作者单位： | [1]安徽理工大学土木工程系,淮南232001 [2]中国科学技术大学力学和机械工程系,合肥230026 |
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| 基金项目： | 安徽理工大学校科研和教改项目,安徽省自然科学基金 |
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| 摘 要： | 应用冻结壁在卸载状态下冻结壁-周围土体共同作用的力学模型,基于大量的冻土应力-应变关系曲线的试验,采用弹塑性非线性本构模型计算冻结壁应力场和位移场.计算结果表明,由于冻结壁在周围土体共同作用下外载比原始水平应力要低,计算的应力场和位移场和有限元模拟接近地.
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| 关 键 词： | 冻结壁 共同作用 弹性非线性本构模型 应力场 位移场 |
| 文章编号： | 1000-6516（2005）05-0053-03 |
| 收稿时间： | 2004-12-05 |
| 修稿时间： | 2004-12-052005-08-05 |
Elastic and plastic model for calculattion of frozen wall stress and displacement field |
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| Li DongWei;Wang RenHe. Elastic and plastic model for calculattion of frozen wall stress and displacement field[J]. Cryogenics, 2005, 0(5): 53-55,58 |
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| Authors: | Li DongWei Wang RenHe |
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| Abstract: | Appling the mechanical model of "interaction of frozen soil wall land surround earth mass in unloaded stated" and based on a lot of the experiments of frozen soil stress-strain curve,a nonlinear elastic plastic model is adopted to compute frozen wall stress and displacement field.The calculation results demonstrate that the load on frozen soil is much lower than the horizontal ground press and the stress and displacement field are much close to FEM simulation.These calculations should be of certain singnificance for the design of frozen wall. |
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| Keywords: | frozen wall interaction nonlinear elastic and plastic model stress field displacement field |
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