土水特征曲线(SWCC)的滞回特性模拟研究

张雪东; 赵成刚; 刘艳; 蔡国庆

土水特征曲线(SWCC)的滞回特性模拟研究

1.
中国水利水电科学研究院岩土工程研究所北京 100048;
2.
北京交通大学土木建筑工程学院北京 100044

基金项目:

国家自然科学基金(50778013)北京市自然科学基金(8082020),水利部公益性行业科研专项(200801133)高心墙堆石坝安全性评价技术研究

详细信息

作者简介:
张雪东,主要从事非饱和土方面的研究.Email:zxerdo@gmail.com

中图分类号: TU411.2
计量
- 文章访问数: 4150
- HTML全文浏览量: 206
- PDF下载量: 2273
- 被引次数: 0
出版历程
- 收稿日期: 2009-11-05
- 修回日期: 2010-10-18
- 刊出日期: 2010-12-25

SIMULATION AND HYSTERESIS MODEL FOR SOIL-WATER CHARACTERISTIC CURVES

1.
Department of Geotechnical Engineering|China Institute of Water Resources and Hydropower Research,Beijing 100048;
2.
School of Civil Engineering and Architecture;Beijing Jiaotong University,Beijing 100044

摘要

摘要: 为了模拟非饱和土的水力、力学特性在多次降雨、蒸发过程中的变化特性,本文以传统域模型的基本原理为基础,推到得到了一个能够模拟SWCC滞后性的计算模型,该模型计算方法简单,易于通过程序实现,且通过与试验数据和其他模型的计算结果对比,验证了该模型的合理性,同时,这个模型可为研究在复杂吸力变化状态下非饱和土的渗流特性、强度特性以及本构模型的研究打下一定的基础。
- 非饱和土 /
- 土水特征曲线 /
- 域模型 /
- 滞回性
Abstract: This paper simulates the variation law of mechanical and hydraulic behavior unsaturated soils in the process of repetitively raining or evaporation. It establishes a hysteresis model on the basis of the basic principle of traditional domain model. The model is simple and can be easily adapted to programming. It is compared to some experimental data and other hysteresis models. The reliability of the proposed model is validated. The result demonstrates its good applicability in practice. Meanwhile, this model can be used as a basis in the research of the permeability and strength characteristic, together with the constitutive theories for unsaturated soils.
- Soil-Water Characteristic Curve /
- SWCC /
- Hysteresis model /
- Unsaturated soil mechanics

HTML全文

参考文献(1)

[1] Fredlund D.G. ,Rahardjo H. Soil Mechanics for Unsaturated Soils
[M].New York: John Wiley & Sons,Inc. ,1993.

[2] Fredlund D.G. ,Xing A. ,Huang S.Y.Predicting the permeability function for unsaturated soils using the soil-water characteristic curve
[J]. Canadian Geotechnical Journal, 1994, 31 (4): 533～546.

[3] Vanapalli S.K. ,Fredlund D.G. ,Pufahl D.E. ,Clifton A.W.Model for the prediction of shear strength with respect to soil suction
[J]. Canadian Geotechnical Journal, 1996, 33 (3): 379～392.

[4] Topp G.C.Soil water hysteresis in silt loam and clay loam soils
[J].Water Resources Research, 1971, 7 (4): 914～920.

[5] Pham H.Q. ,Fredlund D.G. ,Barbour S.L.A study of hysteresis models for soil-water characteristic curves
[J].Canadian Geotechnical Journal, 2005, 42 (6): 1548～1568.

[6] Wheeler S.J. ,Sharma R.S. ,Buisson M.S.R.Coupling of hydraulic hysteresis and stress-strain behavior in unsaturated soils
[J].Geotechnique, 2003, 53 (1): 41～54.

[7] Mualem Y.Modified approach to capillary hysteresis based on a similarity hypothesis
[J].Water Resources Research, 1973, 9 (5): 1324～1331.

[8] Scott P.S. ,Farquhar G.J. ,Kouwen N.Hysteretic effects on net infiltration .In Advance in Infiltration .American Society of Agricultural Engineers Publication, 1983, 163～170.

[9] Everett D.H. ,Smith F.W.A general approach to hysteresis.Part2.Development of the domain theory . Trans.Faraday Soc. ,1954, 50 : 187～197.

[10] Everett D.H.A general approach to hysteresis.Part3.A formal treatment of the independent domain model of hysteresis .Trans.Faraday Soc. ,1954, 50 : 1077～1096.

[11] Poulovassilis A.Hysteresis of pore water-an application of the concept of independent domains
[J]. Soil Sci.Soc, 1962, 93 : 405～412.

[12] Li X.S.Modelling of hysteresis response for arbitrary wetting/drying paths
[J].Computers and Geotechnics, 2005, 32 (2): 133～137.

[13] Flynn D.,Mcnamara H,OKane P,et al.Application of the Preisach model to soil-moisture hysteresis .In Science of Hysteresis . New York: Elsevier, 2006, 3 : 689～744.

[14] Wei C.F. ,Dewoolkar M.M.Formulation of capillary with internal state variables
[J]. Water Resources Research, 2006, 42,W07405,doi: 10.1029/2005WR004594.

[15] Néel L.Théorie des lois daimantation de Lord Rayleigh
[J].Cah.Phys. ,1942-1943: 12 : 1～20; 13 : 19～30.

[16] Enderby J.A.The domain model of hysteresis.Part 1.Independent domains
[J].Trans.Faraday Soc. ,1955, 51 : 835～848.

[17] Feng M.,Fredlund D.G.Hysteretic influence associated with thermal conductivity sensor measurements .In Proceedings from Theory to the Practice of Unsaturated Soil mechanics , 1999, 14: 2 : 14～20.

[18] Topp G.C.Soil water hysteresis measured in a sandy loam compared with the hysteretic domain model
[J].Soil Sci.Soc.Amer.Proc. ,1969, 33 : 643～651.

[19] Poulovassilis A.Hysteresis of pore water in granular porous bodies
[J].Soil Science, 1970, 109 (1): 5～12.

施引文献

资源附件(0)

访问统计