Performance of Geosynthetic-Reinforced Walls Supporting the Founders/Meadows Bridge and Approaching Roadway Structures. Report 2: Assessment of the Performance and Design of the Front GRS Walls and Recommendations for Future GRS Abutments

Details

• Creators:
  Abu-Hejleh, Naser ; Zornberg, Jorge G. ; Wang, Trevor ; McMullen, Michael ; Outcalt, William (Skip)
• Corporate Creators:
  Colorado. Department of Transportation
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Bridge foundations
  • Bridge substructures
  • Footings
  • Geotechnical engineering
  • Fabrics
  • Retaining walls
  • Structural settlement
  • Data collection
  • Geotechnical fabrics
• Publication/ Report Number:
  CDOT-DTD-R-2001-12
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Colorado
• Corporate Publisher:
  Colorado. Department of Transportation
• Description:
  This report provides a summary and analysis of the collected data, assessment of the performance and design of the front wall, and recommendations for design and construction of future GRS abutments. Compaction operations created large loads in the reinforcements and against the wall facing during interim construction stages of the front wall. The front GRS walls showed excellent performance because: (i) the monitored movements were significantly smaller than those expected in design or allowed by performance requirements, (ii) post-construction movements and geogrid strains became negligible after an in-service period of 1 year, (iii) measured loads in the reinforcements, connections, and on the wall facing were less than or around 50% of those estimated in the design, (iv) there is not any potential for overturning the structure (due to the flexibility of GRS wall system, resulting in the reduction of loads developed behind and against the wall facing), and (v) the measured bearing pressures were well below the allowable soil bearing capacity. The design employs a high creep reduction factor for the geogrid reinforcements although little if any long-term creep was observed.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93418/dot_93418_DS1.pdf
• File Type:
  [PDF - 4.51 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:4883b0f96bc179e024e052123952e4054994a2a09207769e516c94dac375dc782a60e41b49488440d8857bd0a7fd5672e8c6371d6875252d60a9695e1003ecdf