Research on Nonlinear Model of Frozen Soil Creep
CAO Wei
XIANG Meng-jia
ZHAO Shao-fei
Abstract：In order to study the creep characteristics of the frozen soil , a kind of nonlinear viscous body which considers the influence of time and stress level is used to instead the ideal Newtonian fluid which is parallel with the spring.Based on this part ,a non-constant and non -Newtonian visco plastic body is connected in series with it , so a new nonlinear visco -elastic model is established .The equation of three -dimensional stress state is deduced.Then using this model , the experimental data of frozen soil creep is fitted by Origin software.The result shows that:①The fitting curves have good agreement with the test data and the model is suitable for the data indifferent temperatures.②The creep model can describe not only the the first two stages of the frozen soil’s creep, but also the accelerating stage.It is very meaningful to analyze the frozen soil creep under high stress.
Keywords：frozen soilcreepBurgers modelaccelerated creep
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 82-86,100 )