非饱和土体变曲线参数规律及确定方法探讨

陈勇; 王世梅

doi:10.13204/j.gyjz200911016

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非饱和土体变曲线参数规律及确定方法探讨

doi: 10.13204/j.gyjz200911016

陈勇,
王世梅

1.
三峡大学三峡库区地质灾害教育部重点实验室,益阳 443002

基金项目:

国家自然科学基金重点资助项目(50839004)

详细信息

作者简介:
陈勇，男，1980年10月出生，讲师，博士。E-mail:cyonger@126.com

计量
- 文章访问数: 88
- HTML全文浏览量: 7
- PDF下载量: 36
- 被引次数: 0
出版历程
- 收稿日期: 2009-03-20
- 刊出日期: 2009-11-20

EXPLORATION ON PARAMETERS VALUE RANGE AND DETERMINATION METHOD OF VOLUME DEFORMATION CURVE OF UNSATURATED SOILS

1.
Key Laboratory of Geological Hazards on Three Gorges Reservoir Area,Ministry of Education,China Three Gorges University,Yichang 443002,China

摘要

摘要: 为探讨非饱和土体变曲线参数的取值范围及确定方法,以非饱和土的Barcelona体变模型和Wheeler体变模型为基础,通过理论分析和公式推导,研究两个模型体变参数的不同取值规律和变化范围,并根据已有的试验数据,运用上述理论确定模型体变参数,为数值模拟中模型参数的假定和类比提供了依据。
- 非饱和土 /
- Barcelona模型 /
- Wheeler模型 /
- 体变曲线
Abstract: In order to explore the parameters value range and their determination methods of volume deformation curve of unsaturated soils,the Barcelona model and Wheeler model of unsaturated soils are taken as the research objects,and the different variation law and value range of volume deformation curve are studies by theoretical analysis and formula derivation.Then based on the experiment data of previous report,the above mentioned theories are used to determine the value of volume deformation curve parameter and provide some evidence for parameter assumptions and analogies in numerical simulation.
- unsaturated soils /
- Barcelona model /
- Wheeler model /
- volume deformation curve

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参考文献(7)

[2] Wheeler S J,Sivakumer V.An Elasto-Plastic Critical State Frameworkfor Unsaturated Soil[J].Geotechnique,1995,45(1):35-53.

Alonso E E,Gens A,Josa A.Constitutive Model for PartiallySaturated Soil[J].Geotechnique,1990,40(3):405-430.

[3] Emie Jose Macari,Laureano Rene Hoyosb,Pedro Arduinoc.Constitutive Modeling of Un-Saturated Soil Behavior UnderAxisymmetric Stress States Using A Stress/Suction-Controlled CubicalTest Cell[J].International Journal of Plasticity,2003,19:1481-1515.

[4] Vaunat J,Cante J C,Ledesma A,et al.A Stress Point Algorithm foran Elastoplastic Model in Unsaturated Soils[J].International Journal ofPlasticity,2000,16:121-141.

[5] 李锡夔,范益群.非饱和土变形及渗流过程的有限元分析[J].岩土工程学报,1998,20(4):20-24.

[6] 杨庚宇.非饱和土弹塑性模型及其有限元法[J].中国矿业大学学报,1998,27(3):221-223.

[7] 陈勇,刘德富,王世梅.非饱和土弹塑性模型参数的试验确定及有限元法[J].岩土力学,2009,30(2):542-546.

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