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Paper
Title

Predicting ε50 for Lateral Response of Piles in Marine Clay Using an Evolutionary-Based Approach

Year: 1392
Publish place:
COI: NSMI15_216
Language: EnglishView: 350
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Authors

Babak Ebrahimian - Department of Infrastructure & Offshore Geotechnics (DIOG), Petroleum Industry Research Engineering Company (PIRE Co.), Tehran, Iran;
Aida Nazari - Department of Infrastructure & Offshore Geotechnics (DIOG), Petroleum Industry Research Engineering Company (PIRE Co.), Tehran, Iran;

Abstract:

Analyzing piles subjected to lateral loads significantly depends on soil resistance at any point along the pile as a function of pile deflection, known as p-y curve. On the other hand, the deformation characteristics of soil defined as the soil strain at 50% of maximum deviatoric stress (ε50) has considerable effect on the generated p-y curve. In thisresearch, several models are proposed to predict ε50 specifically for designing very long pile foundations of offshore oiland gas platforms in South Pars field, Persian Gulf, Iran. Herein, ε50 is evaluated from extensive soil data of marineclays including in-situ and laboratory test results using evolutionary polynomial regression (EPR). It is demonstrated that the normalized cone tip resistance, which is an indication of soil undrained shear strength, leads to more realistic ε50 values compared with the laboratory-derived undrained shear strength parameter. Furthermore, the results of anumerical study on lateral pile-soil system are used in order to show the efficiency of the proposed model in predicting lateral pile response

Keywords:

p-y curve, laterally loaded pile, piezocone penetration test (PCPT), marine clay, evolutionary polynomial regression (EPR), South Pars field

Paper COI Code

This Paper COI Code is NSMI15_216. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/473964/

How to Cite to This Paper:

If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Ebrahimian, Babak and Nazari, Aida,1392,Predicting ε50 for Lateral Response of Piles in Marine Clay Using an Evolutionary-Based Approach,پانزدهمین همایش صنایع دریایی,Kish Island,,,https://civilica.com/doc/473964

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