Two-parameter beam-column model and back analysis for flexible earth retaining walls

Seung Hoon Lee, Soo Il Kim, Jun Hwan Lee, Buhm Soo Chang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Flexible earth retaining walls with tiebacks or struts are often used as a supporting system for ground excavations. In this study, a numerical model for the analysis of flexible earth retaining walls is developed based on the two-parameter beam-column model which considers the shearing interaction between neighboring soils. For more realistic description of soil behavior, the non-linear P-y curve is proposed and used for the analysis. In order to verify the proposed model, two model wall tests are conducted. It is seen that calculated results using the proposed method show good agreement with measured results. A back-analysis program is also developed for estimating wall behavior and changes in soil properties for staged excavations in practice. The back-analysis program is based on the proposed beam-column model and numerical optimization technique. Field monitorings at two construction sites are conducted to verify the proposed back-analysis program. It is observed that wall movements obtained from the back analysis match well measured wall movements at both sites.

Original languageEnglish
Pages (from-to)457-472
Number of pages16
JournalComputers and Geotechnics
Volume31
Issue number6
DOIs
Publication statusPublished - 2004 Sep 1

Fingerprint

Retaining walls
back analysis
retaining wall
Earth (planet)
Soils
Excavation
excavation
Struts
Shearing
Numerical models
soil property
soil
parameter
Monitoring
monitoring
analysis programme
analysis

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Computer Science Applications

Cite this

Lee, Seung Hoon ; Kim, Soo Il ; Lee, Jun Hwan ; Chang, Buhm Soo. / Two-parameter beam-column model and back analysis for flexible earth retaining walls. In: Computers and Geotechnics. 2004 ; Vol. 31, No. 6. pp. 457-472.
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Two-parameter beam-column model and back analysis for flexible earth retaining walls. / Lee, Seung Hoon; Kim, Soo Il; Lee, Jun Hwan; Chang, Buhm Soo.

In: Computers and Geotechnics, Vol. 31, No. 6, 01.09.2004, p. 457-472.

Research output: Contribution to journalArticle

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AB - Flexible earth retaining walls with tiebacks or struts are often used as a supporting system for ground excavations. In this study, a numerical model for the analysis of flexible earth retaining walls is developed based on the two-parameter beam-column model which considers the shearing interaction between neighboring soils. For more realistic description of soil behavior, the non-linear P-y curve is proposed and used for the analysis. In order to verify the proposed model, two model wall tests are conducted. It is seen that calculated results using the proposed method show good agreement with measured results. A back-analysis program is also developed for estimating wall behavior and changes in soil properties for staged excavations in practice. The back-analysis program is based on the proposed beam-column model and numerical optimization technique. Field monitorings at two construction sites are conducted to verify the proposed back-analysis program. It is observed that wall movements obtained from the back analysis match well measured wall movements at both sites.

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