Three dimensional finite element analysis of diaphragm wall installation
Gourvenec, S.M. and Powrie, W. (1999) Three dimensional finite element analysis of diaphragm wall installation. Geotechnique, 49, (6), 801-823. (doi:10.1680/geot.19184.108.40.2061).
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A series of finite-element analyses has been carried out to investigate the impact of three-dimensional effects and panel length on horizontal ground movements and changes in lateral stress during the sequential installation of a number of diaphragm wall panels. The analyses show that the magnitude and extent of lateral stress reduction in the vicinity of a diaphragm wall during construction depend on the panel length and are overpredicted in analyses assuming conditions of plane strain. Furthermore, an overall increase in lateral stress below the toe of the wall is calculated in a plane strain analysis, but is not evident following completion of the wall when a three-dimensional analysis modelling the sequential installation of a number of panels is carried out. The analyses also show that three-dimensional effects tend to reduce lateral soil movements during installation of a diaphragm wall in panels compared with the plane strain case, but soil movements increase markedly with panel length at aspect ratios (panel depth: panel length) of less than three.
|Keywords:||excavation, clays, numerical modelling and analysis, diaphragms and in situ walls, ground movements, retaining walls|
|Subjects:||Q Science > QE Geology
T Technology > TA Engineering (General). Civil engineering (General)
Q Science > QC Physics
|Divisions:||University Structure - Pre August 2011 > School of Civil Engineering and the Environment
|Date Deposited:||11 Mar 2010|
|Last Modified:||01 Jun 2011 05:50|
|Contributors:||Gourvenec, S.M. (Author)
Powrie, W. (Author)
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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