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- W2002471316 abstract "At-rest earth pressure codfficient,K 0 ,is very important in geotechnical engineering design and finite element analysis. At present, it’s treated as a constant usually for given soil in FEM analysis. However recent test results indicate that K 0 of both clay and sand varies with pressure increasing nonlinearly. It’s shown that Duncan-Chang model, a kind of hypoelastic model widely used, can reproduce K 0 varying with pressure. The calculating procedure of K 0 derived from Duncan-Chang’s E-B model is proposed, and then influence of model parameters on calculated K 0 is explored. Studies show that cohesionless soil’s calculated K 0 decreases with pressure increasing, while cohesive soil’s calculated K 0 increases with pressure increasing. Three of the seven model parameters, m, K b and R f , have a positive correlation with calculated K 0 , and there is a negative correlation between the residual parameters and calculated K 0 .The influence of seven model parameters on the calculated K 0 decreases gradually in the following order: m ,n, R f , φ, c, K, K b ." @default.
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- W2002471316 date "2011-05-01" @default.
- W2002471316 modified "2023-09-26" @default.
- W2002471316 title "At-Rest Earth Pressure Coefficient from Hypoelastic Model" @default.
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- W2002471316 doi "https://doi.org/10.4028/www.scientific.net/amr.243-249.2726" @default.
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