Analysis of Excavation-induced Deformation with Different Soil Models

• Autorzy: Cudny M. , Popielski P.
• Języki publikacji: EN

Abstrakty

EN

The monitored case of deep excavation works located in the centre of Warsaw is described and back analysed as a boundary value problem with the finite element method. The excavation was carried out in over-consolidated clayey layers under the support of braced diaphragm walls. Accurate simulation of such soil-structure interaction problems requires advanced soil constitutive models – especially for the pre-failure range of small strains. On the other hand, such models should not be very complex and their material parameters should be relatively simple to obtain from laboratory and in situ surveys. By means of a case study, this paper examines several simple elasto-plastic constitutive models for the simulation of the behaviour of soil layers. The influence of such characteristics of the soil behaviour, as anisotropy and non-linearity of stiffness, is studied in the paper. The discussion concerns the problems related to the application of the models for a practical example. The comparison is focused on the obtained and measured displacements of the neighbouring building and diaphragm walls.

Słowa kluczowe

EN

deep excavation; constitutive modelling; ground deformation

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2010
• Tom: Vol. 14, No 4
• Strony: 339--362
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Cudny M.

autor

Popielski P.

• Department of Geotechnics, Geology and Maritime Engineering, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland,

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