| 往复荷载下软土的边界面广义弹塑性模型 |
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| 引用本文： | 周健,孙吉主,吴世明.往复荷载下软土的边界面广义弹塑性模型[J].岩石力学与工程学报,2002,21(2):210-214. |
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| 作者姓名： | 周健 孙吉主 吴世明 |
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| 作者单位： | 同济大学地下建筑与工程系,上海,200092 |
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| 基金项目： | 国家自然科学基全重点资助项目（59738160）。 |
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| 摘 要： | 针对往复荷载作用下软土变形和孔压发展的特点，应用能模拟低应力水平下塑性变形的边界面模型，将其线弹性卸载过程改进为弹塑性，建立了软粘土的边界面广义弹塑性模型。最后对该模型进行了试验验证，以表明其可靠性。
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| 关 键 词： | 软土 边界面 本构关系 弹塑性模型 荷载 |
| 文章编号： | 2000-6915(2002)02-0210-05 |
| 收稿时间： | 2000-5-31 |
| 修稿时间： | 2000年5月31日 |
ELASTO-PLASTIC MODEL OF SOFT CLAY UNDER REVERSAL LOAD |
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| Zhou Jian,Sun Jizhu,Wu Shiming.ELASTO-PLASTIC MODEL OF SOFT CLAY UNDER REVERSAL LOAD[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(2):210-214. |
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| Authors: | Zhou Jian Sun Jizhu Wu Shiming |
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| Abstract: | A generalized constitutive theory of the boundary surface of soft clay with plastic deformation is established, based on the characteristics of soft soil deformation and variation of pore pressure under reversal loading. The boundary surface model is capable of simulating plastic deformation under low stress level. The linear elastic unloading process is improved and becomes an elasto-plastic one. Through comparison of numerical simulation results with tri-axial test data, its reliability is verified. |
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| Keywords: | soft clay boundary surface constitutive relation elasto-plastic behavior |
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