An Analysis Model for a Hybrid Interactive System Involving Compressible Buffer Material

Hemanta Hazarika, Seishi Okuzono

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

4 Citations (Scopus)

Abstract

In recent years, EPS (Expanded Polystyrene) geofoam is gaining worldwide recognition in construction industry either as lightweight substitution or as compressible buffer to reduce the earth pressures against retaining structures. When EPS is used behind a structure, the structure interacts with the soil via the EPS blocks giving birth to a hybrid interactive system. In this paper, a numerical model is described for the analysis of such a soil-structure-EPS interaction system. The development of the model focused on the constitutive and the interface modeling. A constitutive relation of EPS was formulated using an elasto-plastic hardening law. Recognizing the fact that there is always a thin layer of interface that participates in the interaction process, a new hybrid interface model was developed. The interface was assumed to be elasto-plastic in its behavior. The soil backfill was modeled assuming it as the elasto-plastic hardening and softening material. The developed model was validated through a numerical experiment on a rigid retaining structure.

Original languageEnglish
Title of host publicationProceedings of the 12th (2002) International Offshore and Polar Engineering Conference
EditorsJ.S. Chung, M. Sayed, M. Kashiwagi, T. Setoguchi, S.W. Hong
Pages622-629
Number of pages8
Volume12
Publication statusPublished - 2002
Externally publishedYes
EventProceedings of the Twelfth (2002) International Offshore and Polar Engineering Conference - Kitakyushu, Japan
Duration: May 26 2002May 31 2002

Other

OtherProceedings of the Twelfth (2002) International Offshore and Polar Engineering Conference
CountryJapan
CityKitakyushu
Period5/26/025/31/02

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All Science Journal Classification (ASJC) codes

  • Ocean Engineering

Cite this

Hazarika, H., & Okuzono, S. (2002). An Analysis Model for a Hybrid Interactive System Involving Compressible Buffer Material. In J. S. Chung, M. Sayed, M. Kashiwagi, T. Setoguchi, & S. W. Hong (Eds.), Proceedings of the 12th (2002) International Offshore and Polar Engineering Conference (Vol. 12, pp. 622-629)