Paper published in a book (Scientific congresses, symposiums and conference proceedings)
The influence of a thin weak soil layer on the pile bearing capacity.
Rica, Shilton; Van Baars, Stefan
2018In International Conference on Deep Foundations and Ground Improvement, Urbanization and Infrastructure Development: Future Challenges
Peer reviewed
 

Files


Full Text
DFI-EFFC_Rome18_031.pdf
Publisher postprint (720.98 kB)
DFI-EFFC conference
Request a copy

All documents in ORBilu are protected by a user license.

Send to



Details



Keywords :
Piles; Bearing capacity; Numerical simulations; Influence zone
Abstract :
[en] Most pile design methods for estimating the pile bearing capacity, are based on data from the cone penetration tests (CPT), such as the Dutch (Koppejan) method, the Belgium (De Beer) method or the French (Bustamante & Gianeselli) method. In all these methods, the unit cone resistance of the CPT has to be averaged within an influence zone around the pile tip, in order to be able to calculate the pile tip bearing capacity. The influence zone is defined as the zone in which the parameters of the soil have an influence on the pile tip bearing capacity. For the French method this zone is between 1.5 times the pile diameter, D, above and below the pile tip; while for the Dutch method this zone is between 8 D above to a maximum of 4 D below the pile tip. Numerical simulations on piles installed in homogeneous sandy soil, show that these definitions of the influence zone are not accurate. The simulations show an influence zone from 1 or 2 D above, to 5 or 6 D below the pile tip, depending on the soil parameters. In this research, also the influence of a weak thin soil layer on the pile bearing capacity has been studied. All simulations are made for two different thicknesses of the thin soil layer. Also the soil strength parameters and soil stiffness parameters have been varied, in order to show the influence of this thin soil layer. This influence zone has been confirmed by laboratory tests.
Disciplines :
Civil engineering
Author, co-author :
Rica, Shilton ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Van Baars, Stefan ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
External co-authors :
no
Language :
English
Title :
The influence of a thin weak soil layer on the pile bearing capacity.
Publication date :
05 June 2018
Event name :
International Conference on Deep Foundations and Ground Improvement, Urbanization and Infrastructure Development: Future Challenges
Event organizer :
Deep Foundations Institute (DFI) and European Federation of Foundation Contractors (EFFC)
Event place :
Rome, Italy
Event date :
5-8 June 2018
Audience :
International
Main work title :
International Conference on Deep Foundations and Ground Improvement, Urbanization and Infrastructure Development: Future Challenges
Publisher :
DFI, Rome, Italy
Pages :
308-317
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 02 July 2018

Statistics


Number of views
200 (28 by Unilu)
Number of downloads
1 (1 by Unilu)

Bibliography


Similar publications



Contact ORBilu