Change search
ReferencesLink to record
Permanent link

Direct link
An under-excavation model for The Leaning Tower of Pisa
Norwegian University of Science and Technology, Faculty of Engineering Science and Technology, Department of Civil and Transport Engineering.
2012 (English)MasteroppgaveStudent thesis
Abstract [en]

The Leaning Tower of Pisa is a complex case and has due to its nature been analyzed for decades through both manual and numerical testing. Resent FEM analyses have still not succeeded in modeling all of the stabilizing measures that have been performed on the Tower foundation and are important in relation to the numerical recreation of the measured Tower deformation. One of these is the under-excavation procedure and a new approach to this procedure has been created and modeled in simplified FEM analyses. The new method is implemented in the constitutive Anisotropic Creep Model and has been tested and optimized to make it applicable in a full 3D model of the Tower. Testing performed has shown to be especially sensitive to the choice of mesh refinement, and also to the chosen tube size and in order to obtain accurate extraction values a finer mesh must be used or tube measures must be increased. The new under-excavation procedure has so far not been implemented in the full 3D model of the Tower. This model is complex and thus time demanding and is so far using the internal Soft Soil Model in PLAXIS.

Place, publisher, year, edition, pages
Institutt for bygg, anlegg og transport , 2012. , 105 p.
Keyword [no]
ntnudaim:7757, MTBYGG Bygg- og miljøteknikk, Geoteknikk
URN: urn:nbn:no:ntnu:diva-18620Local ID: ntnudaim:7757OAI: diva2:566132
Available from: 2012-11-08 Created: 2012-11-08

Open Access in DiVA

fulltext(5669 kB)2975 downloads
File information
File name FULLTEXT01.pdfFile size 5669 kBChecksum SHA-512
Type fulltextMimetype application/pdf
cover(346 kB)90 downloads
File information
File name COVER01.pdfFile size 346 kBChecksum SHA-512
Type coverMimetype application/pdf

By organisation
Department of Civil and Transport Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 2975 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 135 hits
ReferencesLink to record
Permanent link

Direct link