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- W2373577695 abstract "It is difficult to select an appropriate constitutive model for numerical simulation of foundation excavation problems.The applicability of two commonly used constitutive models to foundation excavation was examined through numerical simulation in this study.First,the biaxial compression test was conducted using the discrete element method(DEM) and the finite difference method(FDM) that incorporates the Mohr-Coulomb(M-C) model and Drucker-Prager(D-P) model.The model parameters were obtained by fitting the stress-strain curves and the volumetric strain-axial strain curves that were captured by the DEM simulation.Second,using the model parameters,excavation of a foundation pit was simulated by DEM and FDM.Finally,the DEM results of the stress path and strain path were used as the reference for evaluation of the performance and applicability of the M-C model and D-P model.The results show that the two models can accurately capture the stress path during excavation,but cannot describe the accumulation of deformations in soils,and there is not much difference between the two models' results." @default.
- W2373577695 created "2016-06-24" @default.
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- W2373577695 date "2012-01-01" @default.
- W2373577695 modified "2023-09-25" @default.
- W2373577695 title "Applicability of two constitutive models to numerical simulation of foundation excavation" @default.
- W2373577695 hasPublicationYear "2012" @default.
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