Nonlinear static analysis of an asphalt concrete core dam for comparison of three constitutive models

• Autorzy: Hong Z. , Hongyan Z. , Jianke D.
• Języki publikacji: EN

Abstrakty

EN

The goal of this work is to compare different constitutive models in the nonlinear static characteristic analysis of asphalt concrete core dams. The Duncan E- mi model, Duncan E-B model and double-yield-surface model are three major constitutive models in the nonlinear static prediction of earth-rockfill dam. In this paper, an earth-rock fill dam with asphalt concrete core-wall in an actual hydraulic engineering is employed to compare the three models. The finite element model of the core-wall dam is proposed. Nonlinear static analysis of the dam is carried out and the static characteristics are obtained to study the differences generated from different constitutive models. Numerical results show that both the stress extremum and the stress distribution of dam body with three different models are coincident one another. In the deformation analysis of dam body and core-wall, the maximum values of sedimentation with the Duncan E-mi model and the Duncan E-B model, which are greater than the value with double-yield-surface model, are close to the practical test data though the deformation distributions with three models are in good agreement. But, the analysis results of core-wall stress with double-yield-surface model are proper and more reasonable than the other models.

Słowa kluczowe

EN

dam; asphalt concrete core-wall; constitutuve model; Duncan model; double-yield-surface model

PL

zapora; ściana betonowo-asfaltowa; model konstytutywny; model Duncana; model double-yield-surface

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2012
• Tom: Vol. 58, nr 4
• Strony: 503--519
• Opis fizyczny: Bibliogr. 15 poz., il.

Twórcy

autor

Hong Z.

autor

Hongyan Z.

autor

Jianke D.

• Chang'an University, China

Bibliografia

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