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关于非饱和土本构研究的几个基本规律的探讨

盛岱超, 杨 超

盛岱超, 杨 超. 关于非饱和土本构研究的几个基本规律的探讨[J]. 岩土工程学报, 2012, 34(3): 438-470.
引用本文: 盛岱超, 杨 超. 关于非饱和土本构研究的几个基本规律的探讨[J]. 岩土工程学报, 2012, 34(3): 438-470.
shu
SHENG Dai-chao, YANG Chao. Discussion of fundamental principles in unsaturated soil mechanics[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(3): 438-470.
Citation: SHENG Dai-chao, YANG Chao. Discussion of fundamental principles in unsaturated soil mechanics[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(3): 438-470.
shu

关于非饱和土本构研究的几个基本规律的探讨  English Version

  • 纽卡斯尔大学岩土与材料模拟中心，澳大利亚 纽卡斯尔

详细信息
    作者简介:

    盛岱超 (1965 – ) ，男，博士，教授，博士生导师，主要从事非饱和土力学、计算岩土力学、岩土材料的本构模拟与试验和岩土环境工程等方面的研究与教学工作。

  • 中图分类号: TU43

Discussion of fundamental principles in unsaturated soil mechanics

  • Centre for Geotechnical and Materials Modelling, the University of Newcastle, NSW 2308, Australia

摘要

    摘要
  • 摘要: 非饱和土是土不同状态的一种，所有的土都可能对于水处于部分饱和状态。因此，理想的土本构模型应该能够预测在所有可能的孔压和应力范围内土的性质；同时，也可以描述在该范围内任一的应力和水力路径。在过去大约 20 a 的时间中，非饱和土本构性质的研究经历了重大的发展，主要表现在以下几个基本理论方面：体积变化、剪切强度、屈服应力、土水滞回及水力学性质的耦合等。拟从对试验数据的预测效果、各理论间的一致性以及饱和与非饱和状态的连续性 3 个方面，对非饱和土本构基本理论的研究现况进行分析、归纳。
    Abstract: An unsaturated soil is a state of the soils. All soils can be partially saturated with water. Therefore, constitutive models for soils should ideally represent the soil behaviours over entire ranges of possible pore pressure and stress values and allow arbitrary stress and hydraulic paths within these ranges. The last two decades or so have seen significant advances in modelling behaviours of unsaturated soils. A review of constitutive models for unsaturated soils is presented. In particular, it focuses on the fundamental principles that govern the volume change, shear strength, yield stress, water retention and hydro-mechanical coupling. Alternative forms of these principles are critically examined in terms of their predictive capacities for experimental data, the consistency between these principles and the continuity between saturated and unsaturated states.
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  • 收稿日期:  2011-01-05
  • 发布日期:  2012-03-29

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