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Downdrag on Continuous Flight Auger (CFA) Piles Due To Liquefaction

Project Information

Project ID: 
FHWA-PROJ-14-0009
Project Abstract: 

The supplemental funding will support the continuation, data analysis, and documentation of additional field testing of continuous flight auger (CFA) pile downdrag in liquefaction conditions by Brigham Young University. The additional field testing includes axially loading the piles and blasting the site to represent pore pressure generation and dissipation due to liquefaction. Two reports will be developed as a result of this research, including an overview of the testing and an evaluation of methods to estimate downdrag due to liquefaction.

Goals:

The primary objective of this contract is to team up with Brigham Young University (funding also through National Science Foundation and Pacific Earthquake Engineering Research) to utilize three instrumented 0.6-meter diameter continuous flight auger (CFA) piles installed at a Christchurch, New Zealand test site to perform load tests before, during, and after blast-induced liquefaction. These tests will be used to:

Research HUB ID: 
8857
Project Status: 
Completed
Project Funding Amount (Contract Award Amount): 
$10,000
Start Date: 
Tuesday, March 11, 2014
End Date: 
Thursday, November 27, 2014
Public Access Plan: 
No
FHWA AMRP Program: 
Infrastructure
FHWA AMRP Activity: 
Geotechnical, Hydraulics

Contact Information

Team: 
Bridge Engineering Team
Office:
Office of Infrastructure Research and Development
Office Code: 
HRDI-40

Management Organizations

Sponsor Organization: 
Organization Role: 
Sponsor Organization
Organization: 
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role: 
Project Lead
Contact: 
Managing Organization: 
Organization Role: 
Project Managing Organization
Organization: 
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role: 
Project Contact
Contact: 
Performing Organization: 
Organization Role: 
Performing Organization
Organization: 
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role: 
Project Contact
Contact: 

Deliverables