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非饱和土本构模型研究进展

Keywords: 非饱和土,弹塑性模型,损伤模型,热力学,混合物理论

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Abstract:

总结了非饱和土本构模型的研究历史和现状,介绍了非饱和土的各类模型,包括弹塑性模型、广义吸力模型、损伤模型、基于热力学的混合物理论模型.把弹塑性模型分成3个部分进行了介绍:未考虑饱和度影响,考虑饱和度影响但未考虑滞后现象和考虑滞后现象.并介绍了利用热力学和混合物理论建立非饱和土本构模型的新方法,指出了目前非饱和土本构模型研究中存在的问题,给出了今后可能的发展趋势.

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