publication . Article . 2015

Model uncertainty of SPT-based method for evaluation of seismic soil liquefaction potential using multi-gene genetic programming

Pradyut Kumar Muduli; Sarat Kumar Das;
Open Access English
  • Published: 01 Apr 2015 Journal: Soils and Foundations, issue 2, pages 258-275 (issn: 00380806, Copyright policy)
  • Publisher: Japanese Geotechnical Society. Production and hosting by Elsevier B.V.
Abstract
Abstract In this paper, the model uncertainty of the developed standard penetration test (SPT)-based model for evaluation of liquefaction potential of soil is estimated within the framework of the first-order reliability method (FORM). First, an empirical model to determine the cyclic resistance ratio ( CRR ) of the soil is developed, based on the post-liquefaction SPT data using an evolutionary artificial intelligence technique, multi-gene genetic programming (MGGP). This developed resistance model along with an existing cyclic stress ratio ( CSR ) model forms a limit state function for reliability-based approach for liquefaction triggering analysis. The uncert...
Subjects
free text keywords: Standard penetration test, Liquefaction index, Multi-gene genetic programming, Probability of liquefaction, Bayesian mapping function, Reliability index, Notional probability, Geotechnical Engineering and Engineering Geology, Civil and Structural Engineering, Genetic programming, Random variable, Geotechnical engineering, Liquefaction, Soil liquefaction, Limit state design, Factor of safety, Geology, Deterministic system
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