Location

Arlington, Virginia

Session Start Date

8-11-2008

Session End Date

8-16-2008

Abstract

Concrete blocks were used in a temporary storage facility to support replacement steam generators for a nuclear power plant. From the subsurface investigation, it was found that direct ground support of these concrete blocks was not feasible. In order to avoid the use of piles and associated concrete pile cap, which would be costly and take longer to build, a geogrid-reinforced soil mat foundation was adopted. The concrete blocks were put on a steel plate, which in turn rested on the geogrid-reinforced soil mat. Upon completion of the geogrid-reinforced structural fill mat, the replacement steam generators were moved into the temporary storage facility. Settlement monitoring of the concrete blocks proceeded for more than five months and disclosed settlements that were larger than those calculated. However, the measured settlements were still relatively small and the geogrid-reinforced soil mat foundation performed satisfactorily.

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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Geogrid-Reinforced Soil Mat for Temporary Support of Heavy Equipment

Arlington, Virginia

Concrete blocks were used in a temporary storage facility to support replacement steam generators for a nuclear power plant. From the subsurface investigation, it was found that direct ground support of these concrete blocks was not feasible. In order to avoid the use of piles and associated concrete pile cap, which would be costly and take longer to build, a geogrid-reinforced soil mat foundation was adopted. The concrete blocks were put on a steel plate, which in turn rested on the geogrid-reinforced soil mat. Upon completion of the geogrid-reinforced structural fill mat, the replacement steam generators were moved into the temporary storage facility. Settlement monitoring of the concrete blocks proceeded for more than five months and disclosed settlements that were larger than those calculated. However, the measured settlements were still relatively small and the geogrid-reinforced soil mat foundation performed satisfactorily.