| 主应力轴旋转对剪切带形成的影响分析 |
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| 引用本文： | 张启辉,赵锡宏.主应力轴旋转对剪切带形成的影响分析[J].岩土力学,2000,21(1):32-35. |
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| 作者姓名： | 张启辉 赵锡宏 |
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| 作者单位： | 同济大学 地下工程系, 上海 200092 |
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| 摘 要： | 软土的剪切带形成对于研究土的工程性质、土体稳定性评价有重要的意义。 采用可以考虑主应力轴旋转影响的土的弹塑性本构模型———关口-太田模型, 分析主应力轴旋转对剪切带形成的影响, 得出最可能发生局部剪切变形的方向同主应力轴的旋转角有关, 但主轴旋转对激发变形局部化失稳的影响不大的结论。
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| 关 键 词： | 剪切带 主应力轴旋转 局部化 |
| 收稿时间： | 1999-05-27 |
| 修稿时间： | 1999-05-27 |
An influence on shear band formation of the rotations of principal stress directions |
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| Zhang Qihui,Zhao Xihong.An influence on shear band formation of the rotations of principal stress directions[J].Rock and Soil Mechanics,2000,21(1):32-35. |
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| Authors: | Zhang Qihui Zhao Xihong |
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| Institution: | Tongji University , Shanghai 200092, China |
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| Abstract: | The analysis of the formation of shear band will benefit both the study of the engineering behavior of soils and the evaluation of their stability . Based on elasto-plastic model proposed by Sekiguichi and Ohta, the influence on shear band formation of the rotation of principal stress directions is investigated. It can be concluded that the directions along which local shear deformation may occur most probably depend on the rotation angle of the principal stresses, but the rotation of principal axis doesn’t contribute significantly to the instability by localization of the deformation . |
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| Keywords: | shear band rotation of principal stress localization |
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