Premium
Simple model for transient soil loading in earthquake analysis. I. Basic model and its application
Author(s) -
Zienkiewicz O. C.,
Leung K. H.,
Pastor M.
Publication year - 1985
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.1610090505
Subject(s) - monotonic function , simple (philosophy) , liquefaction , bounding overwatch , transient (computer programming) , soil liquefaction , mathematical model , soil mechanics , plasticity , geotechnical engineering , computer science , mathematics , statistical physics , engineering , geology , soil water , materials science , mathematical analysis , physics , philosophy , statistics , epistemology , artificial intelligence , soil science , composite material , operating system
Several models describing soil response under cyclic loading and the ‘liquefaction’ potential have been introduced in recent years with limited success. Most of these are over‐complex for realistic parameter identification and have not been widely adopted for practical use. In this paper we introduce a relatively simple modification of the well‐known critical state model which accounts reasonably well for the phenomena observed under cyclic tests and indeed improves the performance of critical state, models in monotonic loading. This model is compared with experimental results and with the ‘densification model’ introduced earlier by the authors and shows good predicitive capacity. The model is of a generalized plasticity‐bounding surface type. In its simplest form, suitable for clay‐like materials, it requires the identifications of a single parameter additional to those required for a standard, critical state model.