| 粘土的双硬化模型 |
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| 引用本文： | 沈珠江.粘土的双硬化模型[J].岩土力学,1995,16(1):1-8. |
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| 作者姓名： | 沈珠江 |
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| 作者单位： | 南京水利科学研究院 |
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| 摘 要： | 本文中建议了一个包含塑性体应变和偏应变两个硬化参数的封闭屈服面模型，可以同时应用于正常固结土和超固结土。该模型沿用了剑桥模型的参数测定方法，而大大拓展其适用范围。通过正常固结试样、超固结试样和应力路线转折条件下计算与试验曲线的对比，说明该模型有较广泛的适应性。
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| 关 键 词： | 本构模型，屈服面，超固结粘土 |
A Double Hardening Model for Clays |
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| Shen Zhujiang.A Double Hardening Model for Clays[J].Rock and Soil Mechanics,1995,16(1):1-8. |
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| Authors: | Shen Zhujiang |
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| Institution: | Nanjing Hydraulic Research Institute 210024 |
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| Abstract: | In this paper a double hardening model with two hardening parameters(i.e.plastic volumetric strain and shear strain) and a single smooth yield function has been proposed.The model is characterized by its simplicity in determination of soil constants and adaptation for a variety of stress paths.Its yield locus not only can enlarge or contract,but also can change the shape in the successive yielding,and its ability to simulate the stress-strain behaviour both for normally consolidated and overconsolidated clays is demonstrated through comparison of computed results with experimental data of clay samples under 3 typical stress paths. |
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| Keywords: | constitutive model yield surface over-consolidation clay |
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