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Research on Shear Creep Equation and Rheological Parameters of Sludge Soft Clay(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2011年03期
Page:
101-105
Research Field:
Publishing date:
2011-09-20

Info

Title:
Research on Shear Creep Equation and Rheological Parameters of Sludge Soft Clay
Author(s):
ZHENG Chuan-feng1;  WANG Lei1;  JIAO Xiao-lei2
1. School of Construction Engineering, Jilin University, Changchun 130026, Jilin, China; 2. Highway Administration of Tianjin, Tianjin 300211, China
Keywords:
sludge soft clay;  constitutive equation;  creep equation;  linear regression;  dynamic load;  rheological parameter
PACS:
TU411.3
DOI:
-
Abstract:
Viscosity kettle components, spring components and slippage components were used to denote Newton liquid substance, Hook elastic substance and plastic substance of sludge soft clay according to viscoelasto-plastic mechanical properties. These three basic components were combined into a mechanical model of soft clay through the series and parallel combinations. Constitutive equations were derived by Hook law and Newton inner friction law and so on. Creep equations were deduced by Laplace transform and Laplace inverse transform as well as unit step function. The creep equation parameter was confirmed by adopting linear regression. The dynamic loads were assumed as sine wave shear force, and rheological parameters under the dynamic loads were got based on constitutive equation of sludge soft clay. The results show that mechanics relation of theoretical model is definite, rheological characteristics under dynamic loads can be estimated by shear creep equation and definite of creep parameters.

References:

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Last Update: 2011-09-20