Pile set-up in cohesionless soil
2013 (English)In: Proceedings of the 5th International Young Geotechnical Engineers Conference: 5th iYGEC 2013, Amsterdam: IOS Press, 2013, 403-406 p.Conference paper (Other academic)
Piled cohesionless soil shows an increase of bearing capacity with time after installation, this phenomenon is called set-up or freeze. The cost could be reduced if the set-up had been taken into account when designing pile foundation, but in Sweden it is very unusual to do that. Previous studies showed difficulty to predict the phenomenon and that set-up can vary between 25% and 75% during the first 90 days after the pile installation. A study involving five projects have been carried out by specifying certain parameters like pile type, method for pile installation and test method for measure the bearing capacity in cohesionless soils located in Sweden. An empirical relationship to predict the bearing capacity has been used in the study. An interesting result of the study showed that the pile length influences how large the pile set-up gets. A parameter that indicated to have impact on the outcome of the phenomenon was the order of installations of the piles. Stress rearrangement in the soil is one of the mechanisms behind the set-up.
Place, publisher, year, edition, pages
Amsterdam: IOS Press, 2013. 403-406 p.
, Advances in soil mechanics and geotechnical engineering, Vol. 2
IdentifiersURN: urn:nbn:se:kth:diva-136393DOI: 10.3233/978-1-61499-297-4-403ISI: 000333366000096ISBN: 9781614992967OAI: oai:DiVA.org:kth-136393DiVA: diva2:675956
5th International Young Geotechnical Engineers Conference; Paris, France, 30 August - 1 September, 2013
QC 201403032013-12-042013-12-042014-03-03Bibliographically approved