Study on Rheological Behavior of Undisturbed Soft Clay in Wenzhou Considering Structural Property

Article Preview

Abstract:

Based on boundary surface elastoplastic theory, a boundary surface elastoplastic constitutive model is established which is considered both structural property and rheological behavior of soft clay with the method of taking Cam-Clay yield surface as boundary surface. The structural parameters are introduced to calculate structure-damage strain. Plastic volumetric strain is regarded as a function time t so that a rheological parameter is introduced. The constitutive model is validated by numerical analysis of triaxial rheological tests.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

640-645

Citation:

Online since:

September 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] XIE D Y, QI J L. Soil structure characteristics and new approach in research on its quantitative parameter [J]. Chinese Journal of Geotechnical Engineering (in Chinese), 1999, 21(6): 651-656.

Google Scholar

[2] SHEN Z J. The mathematical model of soil structure-core problem of soil mechanics in 20 century.

Google Scholar

[3] HE K S, SHEN Z J. Study on micro-deformation and mechanism of structural clay [J]. Journal of Hehai University(Natural Sciences) (in Chinese), 2003, 31(2): 161-165.

Google Scholar

[4] LEI H Y, XIAO S F. Primary exploration on engineering properties of marine soft soil microstructure in Tianjin region [J]. Geology and Prospecting (in Chinese), 2002, 38(6): 81-85.

Google Scholar

[5] WANG L Z, LI L L, DING L et al. Experimental study on the structure property of soft clay [J]. Chinese Journal of Civil Engineering (in Chinese), 2002, 35(1): 88-106.

Google Scholar

[6] WANG L Z, DING L, CHEN Y M et al. Study on compressibility of structured soft soil [J]. Chinese Journal of Civil Engineering (in Chinese), 2004, 37(4): 46-53.

Google Scholar

[7] SHEN Z J. A masonry model for structured clays [J]. Rock and Soil Mechanics (in Chinese), 2000, 21(1): 1-4.

Google Scholar

[8] ZHOU C, SHEN Z J, CHEN T L et al. A bounding surface masonry model for structured clays [J]. Rock and Soil Mechanics (in Chinese), 2003, 24(3): 317-321.

Google Scholar

[9] WEI X, HUANG M S. Anisotropic bounding surface model for natural structured clays [J]. Rock and Soil Mechanics (in Chinese), 2007, 29(8): 1225-1229.

Google Scholar

[10] Mesri G, Godlewski P M. Time and stress-compressibility interrelationship[J]. Journal of Geotechnical Engineering, 1977, 103(5): 417-430.

DOI: 10.1061/ajgeb6.0000421

Google Scholar

[11] Lin H D, Wang C C. Stress-strain-time function of clay. Journal of Geotechnical and Geoenvironmental Engineering [J]. ASCE, 1998, l24(GT4): 289-296.

Google Scholar

[12] DAFALIAS Y F. Bounding surface elastoplasticity viseoplastieity for particulate cohesive media. In: Proc. IUTAM symposium on Deformation and Failure of Granular Materials, Vermeer P A, Luger H J(eds. ), A A Balkema, Publishers Rotterdam, 1982, 97-107.

Google Scholar

[13] CROUCH, R.S., WOLF, J.P. On a three-dimensional anisotropic plasticity model for soil [J]. Geotechnique, 1995, 45(2): 301-305.

DOI: 10.1680/geot.1995.45.2.301

Google Scholar

[14] ROUAINIA M, MUIR WOOD D. A kinematic hardeningconstitutive model for natural clays with loss of structure[J]. Geotechnique, 2000, 50(2): 153-164.

DOI: 10.1680/geot.2000.50.2.153

Google Scholar

[15] HUANG M S, ZHONG H H, LI Y S. Elasto-plastic boundary surface model for natural soft clay with structural damage [J]. Journal of Hydraulic Engineering (in Chinese), 2003, (12): 47-52.

Google Scholar