U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
| Project Information | ||
| Project ID: | FHWA-PROJ-11-0061 | |
| Project Name: | Performance Tests for Geosynthetic Reinforced Soil (GRS) | |
| Project Status: | Completed | |
| Start Date: | August 15, 2011 | |
| End Date: | September 2, 2013 | |
| Contact Information | ||
| Last Name: | Nicks | |
| First Name: | Jennifer E | |
| Telephone: | 202-493-3075 | |
| E-mail: | jennifer.nicks@dot.gov | |
| Office: | Office of Infrastructure Research and Development | |
| Team: | Bridge and Foundation Engineering Team [HRDI-40] | |
| Program: | Innovative Bridge Research and Deployment | |
| Laboratory: | Structures Laboratory | |
| Project detail | ||
| Project Description: | A performance test is a load test on a geosynthetic reinforced soil column. A resulting stress-strain (or load-settlement) curve describes the stiffness and capacity of that composite. Different factors that affect performance (e.g. reinforcement material, reinforcement strength, reinforcement spacing, backfill type) were investigated. In addition, since the tests are loaded to failure, a LRFD calibration for bearing resistance was performed. | |
| Goals: |
The primary objectives of this research report are to:
(1) Build a database of Geosynthetic Reinforced Soil (GRS) material properties that can be used by designers or for Load and Resistance Factor Design (LRFD) calibration.
(2) Evaluate the relationship between reinforcement strength and spacing.
(3) Quantify the contribution of the frictionally connected facing elements at the service limit and strength limit states.
(4) Assess the new internal stability design method proposed by Adams et al. 2011a for GRS.
(5) Perform a reliability analysis of the proposed soil-geosynthetic capacity equation for LRFD.
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| More Information URL(s): | ||
| Product Type: | Article Data Research report | |
| Test Methodology: | Laboratory testing. | |
| Expected Benefits: | The expected benefit is advancement of the design of geosynthetic reinforced soil walls and abutments. | |
| Deliverables: | Name: Research report and database. Product Type(s): Research report, Data, Article Description: A research report will be published detailing the results of the experimentation. A database will also be developed with various soil types, reinforcement materials, reinforcement strengths, and reinforcement spacing. Publication URL(s): http://www.fhwa.dot.gov/publications/research/infrastructure/structures/13066 | |
| Project Findings: | See FHWA-HRT-13-066 http://www.fhwa.dot.gov/publications/research/infrastructure/structures/13066 | |
| FHWA Topics: | Roads and Bridges--Design | |
| TRT Terms: | Transportation Infrastructure Materials Soils Planning and Design Deformation Curve Abutments Structural Members |
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| FHWA Disciplines: | Design Geotechnical Structures |
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| Subject Areas: | Bridges and other structures Design Geotechnology Research Transportation (General) |
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