A contribution to the analysis of pile-supported raft foundations
A contribution to the analysis of pile-supported raft foundations
This thesis presents a new approximate theoretical analysis of pile-raft foundations from which a Direct Boundary Element Method (DBEM) computer code has been developed. It is assumed that, at the present time, linear elastic soil models provide a sufficient degree of sophistication for such an analysis.The analysis developed couples a `plate-bending boundary element analysis' with that of a pile-reinforced supporting linear elastic continuum.A parametric study was carried out using PGroup 3.0 (the Department of Transport pile analysis computer program), which provided flexibilities for a single pile, pairs of piles, 3 pile group and square arrangements of 4, 9 and 16 piles (in an elastic soil with a modulus increasing linearly with depth) in a form useful to the pile designer. The study was also extended to develop empirical equations, using output from PGroup 3.0, to provide algebraic expressions for the vertical flexibility of single piles, which were then incorporated in the classically supported raft analysis to allow for the presence of piles beneath it.The author's computer program, based on the above model, has been thoroughly tested by comparing its predictions with both published analytical and numerical solutions and data obtained from field measurements on full-scale pile rafts. (D80754)
University of Southampton
1987
Fatemi-Ardakani, Bita
(1987)
A contribution to the analysis of pile-supported raft foundations.
University of Southampton, Doctoral Thesis.
Record type:
Thesis
(Doctoral)
Abstract
This thesis presents a new approximate theoretical analysis of pile-raft foundations from which a Direct Boundary Element Method (DBEM) computer code has been developed. It is assumed that, at the present time, linear elastic soil models provide a sufficient degree of sophistication for such an analysis.The analysis developed couples a `plate-bending boundary element analysis' with that of a pile-reinforced supporting linear elastic continuum.A parametric study was carried out using PGroup 3.0 (the Department of Transport pile analysis computer program), which provided flexibilities for a single pile, pairs of piles, 3 pile group and square arrangements of 4, 9 and 16 piles (in an elastic soil with a modulus increasing linearly with depth) in a form useful to the pile designer. The study was also extended to develop empirical equations, using output from PGroup 3.0, to provide algebraic expressions for the vertical flexibility of single piles, which were then incorporated in the classically supported raft analysis to allow for the presence of piles beneath it.The author's computer program, based on the above model, has been thoroughly tested by comparing its predictions with both published analytical and numerical solutions and data obtained from field measurements on full-scale pile rafts. (D80754)
This record has no associated files available for download.
More information
Published date: 1987
Identifiers
Local EPrints ID: 461672
URI: http://eprints.soton.ac.uk/id/eprint/461672
PURE UUID: c49e3471-f6e2-4650-a721-f847314206e1
Catalogue record
Date deposited: 04 Jul 2022 18:51
Last modified: 04 Jul 2022 18:51
Export record
Contributors
Author:
Bita Fatemi-Ardakani
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics