Location

Arlington, Virginia

Session Start Date

8-11-2008

Session End Date

8-16-2008

Abstract

This study investigates the reasons of excessive movements of a group of reinforced-concrete retaining walls with a total length of over 300 meters, constructed in 2000 in Kocaeli, Turkey. The contractor had documented the construction stages in sufficient detail. Evaluation of available documents, field observations and engineering analysis has shown that the factor of safety for the walls was around one. In other words, the walls were slowly failing. Engineering errors on calculation of earth pressures and the use of wrong backfill were identified as the primary reasons. The factor of safety of the failing walls was significantly improved by using the combination treatment of backfill replacement, base enlargement, post-construction shear key enclosure and drainage improvement.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Sixth Conference

Publisher

Missouri University of Science and Technology

Publication Date

8-11-2008

Document Version

Final Version

Rights

© 2008 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Aug 11th, 12:00 AM Aug 16th, 12:00 AM

Analysis of a Group of Failing Retaining Walls and Remediation Measures

Arlington, Virginia

This study investigates the reasons of excessive movements of a group of reinforced-concrete retaining walls with a total length of over 300 meters, constructed in 2000 in Kocaeli, Turkey. The contractor had documented the construction stages in sufficient detail. Evaluation of available documents, field observations and engineering analysis has shown that the factor of safety for the walls was around one. In other words, the walls were slowly failing. Engineering errors on calculation of earth pressures and the use of wrong backfill were identified as the primary reasons. The factor of safety of the failing walls was significantly improved by using the combination treatment of backfill replacement, base enlargement, post-construction shear key enclosure and drainage improvement.