P-Y curves for laterally loaded single piles: Numerical validation


TİMURAĞAOĞLU M. Ö. , Fahjan Y., DOĞANGÜN A.

MARINE GEORESOURCES & GEOTECHNOLOGY, vol.40, no.10, pp.1162-1170, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 40 Issue: 10
  • Publication Date: 2022
  • Doi Number: 10.1080/1064119x.2021.1972063
  • Journal Name: MARINE GEORESOURCES & GEOTECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Aquatic Science & Fisheries Abstracts (ASFA), Communication Abstracts, Compendex, Computer & Applied Sciences, Environment Index, Geobase, INSPEC, Metadex, Pollution Abstracts, Civil Engineering Abstracts
  • Page Numbers: pp.1162-1170
  • Keywords: P-Y curve, finite element analysis, kinematic hardening model, lateral load, full contact, frictional slip contact, BEHAVIOR, SOIL, LIQUEFACTION, EARTHQUAKE
  • Bursa Uludag University Affiliated: Yes

Abstract

Pile foundations are widely used in marine and coastal engineering structures. The correct analysis method must be used to ensure the safety of piled systems used in marine and coastal structures. Despite several methods available in the literature, the numerical method is increasingly applied for understanding the loading mechanism of pile-soil interaction under vertical, lateral, or seismic loadings. The present study focuses on the numerical validation of centrifugal test results of the single pile in dense sand under lateral loading. An extensive parametric study is carried out to validate numerical models due to the lack of experimental tests such as shear or triaxial tests. In the numerical model, the soil is represented by a kinematic hardening model, which is simple to calibrate in finite element analysis, whereas pile is modeled as an elastic material. The p-y family of the curve is back-calculated for a single pile and an algorithm is generated. Two interface models between soil and pile, namely full contact and frictional slip contact, are investigated to represent the behavior under horizontal loading. Then, the analyses are extended to vertical loading to assess the influence of interface models.