An interaction model for seismic stability analysis of caisson type structure

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

Abstract

An interaction model was developed for a gravity type caisson with granular backfill sandwiching a protective compressible layer as cushion, whose function is to improve the seismic stability of the structure. Interfaces on either side of the cushion were modeled as elements of finite thickness having different stiffness and constitutive properties. Participation of each element of the interaction system was taken into the account by incorporating appropriate factors at the respective interfaces. Seismic analyses were performed on a gravity type caisson using the developed model. Comparison of the analysis results with a similar caisson without any protective cushion showed that the use of cushion (made from a compressible recycled material) yields a significant reduction of seismic load on the structure.

Original languageEnglish
Title of host publicationFrontiers in Offshore Geotechnics, ISFOG 2005 - Proceedings of the 1st International Symposium on Frontiers in Offshore Geotechnics
Pages577-582
Number of pages6
Publication statusPublished - Dec 1 2005
Externally publishedYes
Event1st International Symposium on Frontiers in Offshore Geotechnics, ISFOG 2005 - Perth, WA, Australia
Duration: Sep 19 2005Sep 21 2005

Publication series

NameFrontiers in Offshore Geotechnics, ISFOG 2005 - Proceedings of the 1st International Symposium on Frontiers in Offshore Geotechnics

Other

Other1st International Symposium on Frontiers in Offshore Geotechnics, ISFOG 2005
CountryAustralia
CityPerth, WA
Period9/19/059/21/05

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All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

Cite this

Hazarika, H. (2005). An interaction model for seismic stability analysis of caisson type structure. In Frontiers in Offshore Geotechnics, ISFOG 2005 - Proceedings of the 1st International Symposium on Frontiers in Offshore Geotechnics (pp. 577-582). (Frontiers in Offshore Geotechnics, ISFOG 2005 - Proceedings of the 1st International Symposium on Frontiers in Offshore Geotechnics).