عنوان

Study of pore pressure variation during liquefaction using two constitutive models for sand

شماره

LA2cd5p4tw

عنوان اصلي

Study of pore pressure variation during liquefaction using two constitutive models for sand

نام عام مواد

[Article]

نام نخستين پديدآور

Taiebat, Mahdi; Shahir, Hadi; Pak, Ali

متن يادداشت

Numerical analyses of liquefiable sand are presented in this paper. Liquefaction phenomenon is an. undrained response of saturated sandy soils when they are subjected to static or dynamic loads. A fully coupled dynamic computer code is developed to predict the liquefaction potential of a saturated sandy layer. Coupled dynamic field equations of extended Biot's theory with u-P formulation are used to determine the responses of pore fluid and soil skeleton. Generalized Newmark method is employed for integration in time. The soil behavior is modeled by two constitutive models; a critical state two-surface plasticity model, and a densification model. A class 'B' analysis of a centrifuge experiment is performed to simulate the dynamic response of level ground sites. The results of the numerical analyses demonstrate the capability of the critical sate two-surface plasticity model in producing pore pressures that are consistent with observations of the behavior of liquefiable sand in the centrifuge test. (c) 2006 Elsevier Ltd. All rights reserved.

تاريخ نشر

2007

عنوان

UC Davis

نام الکترونيکي

نوع ماده

[Article]

کد کاربرگه

275578

سطح دسترسي

a

تكميل شده

Y