A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A Predictive Model for Static Liquefaction
In this paper, a simple criterion to predict liquefaction instability is derived. The instability concept is unified and it is shown that the liquefaction criterion coincides with other bifurcation criteria proposed previously. Also, the criterion is used to shed some light into the mechanisms triggering liquefaction phenomena. A predictive plasticity model for granular materials is used in concert with the instability condition to predict the onset of liquefaction. The model is compared against experimental data from samples of sand under undrained triaxial compression. It is shown that the model correctly predicts the onset of liquefaction when the sand is contractive and that Lade's instability line is obtained. On the other hand, dilative samples do not liquefy and rather feature the so-called phase transformation. The accurate nature of the quasi-static plasticity model seems to open the door to better understanding, modeling, prediction, and capture of catastrophic instabilities in saturated granular materials under general loading conditions.
A Predictive Model for Static Liquefaction
In this paper, a simple criterion to predict liquefaction instability is derived. The instability concept is unified and it is shown that the liquefaction criterion coincides with other bifurcation criteria proposed previously. Also, the criterion is used to shed some light into the mechanisms triggering liquefaction phenomena. A predictive plasticity model for granular materials is used in concert with the instability condition to predict the onset of liquefaction. The model is compared against experimental data from samples of sand under undrained triaxial compression. It is shown that the model correctly predicts the onset of liquefaction when the sand is contractive and that Lade's instability line is obtained. On the other hand, dilative samples do not liquefy and rather feature the so-called phase transformation. The accurate nature of the quasi-static plasticity model seems to open the door to better understanding, modeling, prediction, and capture of catastrophic instabilities in saturated granular materials under general loading conditions.
A Predictive Model for Static Liquefaction
Andrade, José E. (author)
GeoCongress 2008 ; 2008 ; New Orleans, Louisiana, United States
GeoCongress 2008 ; 664-669
2008-03-07
Conference paper
Electronic Resource
English
A Predictive Model for Static Liquefaction
| British Library Conference Proceedings | 2008
Static liquefaction of sands and its liquefaction index
| British Library Conference Proceedings | 1995
Forewarning of Static Liquefaction Landslides
| ASCE | 2020
Model Prediction of Static Liquefaction in Unsaturated Sands
| Springer Verlag | 2017
A predictive framework for liquefaction instability
| British Library Online Contents | 2009