The influence of jet-grout constitutive modelling in excavation analyses

M. Ciantia, Marcos Arroyo, Riccardo Castellanza, A. Gens

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

Abstract

A bonded elasto-plastic soil model is employed to characterize cement-treated clay in the finite element analysis of an excavation on soft clay supported with a soil-cement slab at the bottom. The soft clay is calibrated to represent the behaviour of Bangkok soft clay. A parametric study is run for a series of materials characterised by increasing cement content in the clay-cement mixture. The different mixtures are indirectly specified by means of their unconfined compressive strength. A similar parametric analysis is run in parallel using a linear elastic-perfectly plastic model for the clay-cement. Results from both series of analysis are compared highlighting the differences in predicted behaviour of the retaining wall and the excavation stability.

Original languageEnglish
Title of host publicationGeotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 7th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground
PublisherCRC Press
Pages773-780
Number of pages8
ISBN (Print)9780415683678
Publication statusPublished - 2012
Event7th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground - Roma, Italy
Duration: 17 May 201119 May 2011

Conference

Conference7th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground
CountryItaly
CityRoma
Period17/05/1119/05/11

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