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Finite element analysis of a centrifuge model of a retaining wall embedded in a heavily overconsolidated clay |
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| Authors: | M D Bolton and A M Britto W Powrie T P White |
| Institution: | University Engineering Department Cambridge University, Trumpington Street, Cambridge, CB2 1PZ, England Queen Mary College, University of London, Mile End Road, London E1 4NS, England Main Roads Department, Highway Authority, Western Australia |
| Abstract: | The current study is aimed at the behaviour right upto collapse of a retaining wall embedded in overconsolidated clay. It is found that the excess pore pressures generated due to the excavation are fairly well simulated. The rupture lines on the passive side in the centrifuge model test were closely matched by two lines along which the stress state was reaching the critical state in the analysis. The displacements on the active side were not well matched especially the vertical settlements near to the wall. The bending moments were significantly overpredicted. The prop force due to excavation was also overpredicted. This is to be expected because the prop was modelled as rigid in the analysis. |
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