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Author Salhi, L.; Nait-Rabah, O.; Deyrat, C.; Roos, C. pdf  url
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  Title Numerical Modeling of Single Helical Pile Behavior under Compressive Loading in Sand Type Journal Article
  Year (down) 2013 Publication Electronic Journal of Geotechnical Engineering Abbreviated Journal Electron. J. Geotech. Eng.  
  Volume 18 Issue Bundle T Pages 4119-4338  
  Keywords helical pile; finite element method; failure mechanisms; sand  
  Abstract The present research deals with helical piles behavior in cohesionless soil through finite element modeling. An approach of modeling of the screw-pile geometry has been proposed through the Finite Element Analysis (FEA) computer program Plaxis. The numerical results are compared with measurements from large scale test and the bearing capacity has been estimated using both cylindrical and individual bearing model. Moreover, different failure criterions have been applied to estimate the ultimate capacity. The effect of spacing ratio (S/Dh) on the screw-pile behavior has been further studied. It has found that results from the model fit the field results. Through the study of the load transfer mechanism, the transition from cylindrical shear to individual plate behavior occurs at a value of spacing ratio (1.5 to 2).  
  Address Laboratoire des matériaux et molécules en milieu amazonien, EcoFoG-Université des Antilles-Guyane, 97351 Cayenne, French Guiana  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number EcoFoG @ webmaster @ Serial 525  
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