Geosynthetic wall performance : facing pressure and deformation : final report.

Hoffman, Peter; Wu, Jonathan T.H.; University of Colorado. Reinforced Soil Research Center; University of Colorado at Denver. Dept. of Civil Engineering

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

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Geosynthetic wall performance : facing pressure and deformation : final report.

2017-02-01
By Hoffman, Peter ; Wu, Jonathan T.H.

[PDF-3.54 MB]

English

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Details:

Alternative Title:

GRS wall performance : facing pressure and deformation.
Creators:

Hoffman, Peter ; Wu, Jonathan T.H.

Hoffman, Peter ; Wu, Jonathan T.H. Less -
Corporate Creators:

University of Colorado. Reinforced Soil Research Center ; University of Colorado at Denver. Dept. of Civil Engineering

University of Colorado. Reinforced Soil Research Center ; University of Colorado at Denver. Dept. of Civil Engineering Less -
Corporate Contributors:

Colorado. Dept. of Transportation. Research Branch ; United States. Federal Highway Administration

Colorado. Dept. of Transportation. Research Branch ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Bridge Design Closely-spaced Deformation Facing Pressure Geosynthetics GRS Reinforced Soil Reinforcement (Engineering) Walls
Publication/ Report Number:

CDOT-2017-03
Resource Type:

Tech Report
Geographical Coverage:

United States
TRIS Online Accession Number:

1644550
Abstract:

The objective of the study was to validate the performance of blocked-faced Geosynthetic Reinforced Soil (GRS) wall and to validate the Colorado Department of Transportation’s (CDOT) decision to waive the positive block connection for closely-spaced reinforcement, defined in report FHWA-HRT-11-026. Contrary to conventional wisdom, the GRS wall measurements of this study demonstrated that facing pressure decreases as load increases. This counter-intuitive fact is due to the decrease of compaction-induced stress (CIS) with increased load. Therefore, if a GRS wall survives compaction, it survives indefinitely. Implementation: Pilot specifications for projects selected by the CDOT Bridge Design and Management Branch and allowed by CDOT Regions for trial or demonstration must be developed specifically for each experimental GRS wall construction project. Continued successful application of pilot specifications that waive the use of positive facing connection for closely-spaced reinforcement in GRS design and construction will generate significant support for their acceptance.
Format:

PDF
Funding:

214.05b
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:09014bfcdbe81a42b06aa45c0a3a5384549fc7e6ccee48055848e4fb7c058801
Download URL:

https://rosap.ntl.bts.gov/view/dot/32593/dot_32593_DS1.pdf
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Geosynthetic wall performance : facing pressure and deformation : final report.

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