Systematic update of a numerical model of a deep excavation using field performance data

Y. M.A. Hashash, J. Ghaboussi, S. Jung, C. Marulanda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Numerical simulation of staged construction of urban deep excavations is commonly used to estimate induced ground deformation in the support wall and at adjacent existing structures. During construction it is desirable to incorporate field observations from the early construction stages into the numerical simulation to obtain a more accurate estimate of anticipated ground deformations in later construction stages where the excavation level is deeper. A novel, powerful and systematic method to calibrate the constitutive model of the soil behavior directly from field measurements is developed. The autoprogressive method; a neural network based methodology that has been proposed by Ghaboussi and his co-workers, is applied to the modeling of staged construction for a deep braced excavation. Analysis results demonstrate the applicability of the proposed methodology. A discussion of the potential of this method is also presented.

Original languageEnglish (US)
Title of host publicationNumerical Models in Geomechanics - 8th Proceedings of the International Symposium on Numerical Models in Geomechanics, NUMOG 2002
EditorsG.N. Pande, S. Pietruszczak
PublisherCRC Press/Balkema
Pages515-522
Number of pages8
ISBN (Print)9789058093592
DOIs
StatePublished - 2002
Event8th International Symposium on Numerical Models in Geomechanics, NUMOG 2002 - Rome, Italy
Duration: Apr 10 2002Apr 12 2002

Publication series

NameNumerical Models in Geomechanics - 8th Proceedings of the International Symposium on Numerical Models in Geomechanics, NUMOG 2002

Other

Other8th International Symposium on Numerical Models in Geomechanics, NUMOG 2002
CountryItaly
CityRome
Period4/10/024/12/02

ASJC Scopus subject areas

  • Soil Science
  • Numerical Analysis

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