Evaluation of Lateral Pile Resistance Near MSE Walls at a Dedicated Wall Site - Phase 2

The Phase 1 study included construction of a dedicated mechanically stabilized earth (MSE) wall site in Utah with instrumented piles behind the 20-ft high wall. This wall site will be reused for the Phase 2 testing. Funded tasks for this Phase 2 study include: 1. Excavate the top 6 ft of the soil backfill behind the existing MSE wall. 2. Instrument MSE reinforcements and piles with strain gauges. 3. Re-compact the top 6 ft of the soil backfill behind the existing MSE wall. 4. Conduct cyclic lateral pile load testing. 5. Conduct fixed-head lateral pile load testing. 6. Conduct lateral pile load testing of larger-diameter piles (24-inch diameter), to be newly placed between cut-off existing piles. 7. Conduct lateral pile load testing of a pile group. 8. Develop p-multipliers for Phase 2 lateral pile load testing results, compare these with the Phase 1 results, and update the overall p-multiplier equation as necessary. 9. Develop tensile force equations for Phase 2 lateral pile load testing results, compare these with the Phase 1 results, and update the overall tensile force equations as necessary. 10. Submit a final report that documents the Phase 2 research effort. 11. Report results to TAC committee members in video conferences. 12. Make presentations at American Association of State Highway and Transportation Officials (AASHTO) bridge engineers’ committee meetings and Transportation Research Board (TRB) events to aid in national efforts to implement the study results.

• Record URL:
  http://www.pooledfund.org/Details/Study/633

Language

• English

Project

• Status: Active
• Funding: $240000
• Contract Numbers:

  TPF-5(381)

• Sponsor Organizations:

  California Department of Transportation

  1227 O Street
  Sacramento, CA  United States  95814

  Kansas Department of Transportation

  Eisenhower State Office Building
  700 SW Harrison Street
  Topeka, KS  United States  66603-3754

  Minnesota Department of Transportation

  Transportation Building
  395 John Ireland Boulevard
  St Paul, MN  United States  55155

  Utah Department of Transportation

  4501 South 2700 West
  Project Development
  Salt Lake City, UT  United States  84114-8380

  Wisconsin Department of Transportation

  PO Box 7910
  4802 Sheboygan Avenue, Room 104
  Madison, WI  United States  53707-7910

  New York State Department of Transportation

  50 Wolf Road
  Albany, NY  United States  12232

  Florida Department of Transportation

  Research Center
  605 Suwannee Street MS-30
  Tallahassee, FL  United States  32399-0450
• Project Managers:

  Stevens, David

• Performing Organizations:

  Brigham Young University

  Provo, UT  United States  84602-4081
• Principal Investigators:

  Rollins, Kyle

• Start Date: 20180820
• Expected Completion Date: 20220315
• Actual Completion Date: 0
• Source Data: RiP Project 42351

Subject/Index Terms

• TRT Terms: Earth walls; Load tests; Mechanically stabilized earth; Piles (Supports); Strain gages; Tension tests
• Geographic Terms: Utah
• Subject Areas: Bridges and other structures; Geotechnology; Highways;

Filing Info

• Accession Number: 01666437
• Record Type: Research project
• Source Agency: Federal Highway Administration
• Contract Numbers: TPF-5(381)
• Files: RIP, USDOT, STATEDOT
• Created Date: Apr 22 2018 6:06PM