Repository logo
  • Log In
    New user? Click here to register.Have you forgotten your password?
University College Dublin
    Colleges & Schools
    Statistics
    All of DSpace
  • Log In
    New user? Click here to register.Have you forgotten your password?
  1. Home
  2. College of Engineering & Architecture
  3. School of Civil Engineering
  4. Civil Engineering Research Collection
  5. An investigation of correlation factors linking footing resistance on sand with cone penetration test results
 
  • Details
Options

An investigation of correlation factors linking footing resistance on sand with cone penetration test results

Author(s)
Gavin, Kenneth  
Tolooiyan, Ali  
Uri
http://hdl.handle.net/10197/4120
Date Issued
2012-11
Date Available
2013-02-20T11:58:11Z
Abstract
Significant research effort has led to improvements in our ability to estimate the ultimate
bearing resistance of footings in sand. These techniques often estimate the footing
resistance at relatively large displacements, typically 10% of the footing width, qb0.1.
Cone Penetration Test (CPT) design methods typically link qb0.1 and qc through a constant reduction factor, a. A range of a factors for shallow footings have been proposed, some methods suggest that a is constant and while others that it varies with footing width and depth (or stress level). There is a dearth of field data with which to compare these correlation factors, in particular where foundation width and depth have been varied in the same ground conditions. For this reason finite element analyses have proven to be a useful tool for performing the parametric studies required to asses factors controlling a. This paper describes the results of numerical analyses performed to investigate a factors for soil profiles which were calibrated using the results of the CPT tests performed at a dense sand test-bed site. The numerical model was first used to perform parametric 2 analyses to consider the effect of footing width, B and footing depth, D on the a factor mobilised in dense Blessington sand. In order to assess the effects of relative density, footing tests in a range of natural sands with variable in-situ densities were modeled. The results of the finite element analyses suggest that a direct correlation between qb0.1 and qc can be established at a given test site which is independent of footing width and depth and is relatively weakly dependent on the sands relative density if the zone of influence of the foundation considered is large enough.
Type of Material
Journal Article
Publisher
Elsevier
Journal
Computers and Geotechnics
Volume
46
Start Page
84
End Page
92
Copyright (Published Version)
2012 Elsevier Ltd
Subjects

Cone penetration test...

Finite element analys...

Sand

Footing

Bearing resistance

DOI
10.1016/j.compgeo.2012.06.005
Language
English
Status of Item
Peer reviewed
ISSN
0266352X
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by-nc-sa/1.0/
File(s)
Loading...
Thumbnail Image
Name

AN INVESTIGATION OF CORRELATION FACTORS LINKING FOOTING RESISTANCE ON SAND WITH CONE PENETRATION TEST RESULTS.pdf

Size

1.28 MB

Format

Adobe PDF

Checksum (MD5)

326cc7b5522be17d942a011cb3b60afe

Owning collection
Civil Engineering Research Collection

Item descriptive metadata is released under a CC-0 (public domain) license: https://creativecommons.org/public-domain/cc0/.
All other content is subject to copyright.

For all queries please contact research.repository@ucd.ie.

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science

  • Cookie settings
  • Privacy policy
  • End User Agreement