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Author:

Li, Zheng (Li, Zheng.)

Indexed by:

EI Scopus

Abstract:

With the rapid development of computer science and computational techniques, numerical simulations are regarded as powerful tools to solve complex geotechnical problems such as soil-structure interaction effects on liquefiable sites. For the simulation of soil liquefaction, soil constitutive models play important role in the correctly reproducing and interpreting the behavior liquefied soil and so as to the consequent soil structure interaction (SSI) problem. In this study, a comparative work was carried out to investigate the influence of different soil constitutive models on SSI effect on a liquefiable site. Two well know soil constitutive models are exploited: SANISAND model (Dafalias et al. 2004) and Hypoplastic model (von Wolffersdorff 1996). These two numerical models were first numerically implemented by semi-explicit 3rd order Runge-Kutta integration scheme with adapting sub-steps. The numerical implementation is done by UMAT subroutines in Abaqus. The model parameters of these two constitutive models were calibrated using triaxial test data of Fontainebleau sand (NE34). The performance of these two constitutive models is investigated numerically by comparing the seismic responses of a shallow foundation on the same liquefiable site. Results show that although these two constitutive models can be calibrated successfully against oridinary triaxial test data, their performance in terms of a real case SSI are different. The possible reasons are also disccussed in this study. © 2018, Springer Nature Switzerland AG.

Keyword:

Constitutive models Geotechnical engineering Soil liquefaction Soil structure interactions Numerical models Runge Kutta methods Soils

Author Community:

  • [ 1 ] [Li, Zheng]Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing, China

Reprint Author's Address:

  • [li, zheng]key laboratory of urban security and disaster engineering of ministry of education, beijing university of technology, beijing, china

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Source :

ISSN: 1866-8755

Year: 2018

Issue: 216849

Page: 370-372

Language: English

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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