Strain in a GRS Bridge Abutment: Strain Gauge Attachment Techniques, Performance and Survivability during Construction and Operation

Field deformation of geosynthetic reinforced soil (GRS) is commonly inferred using strain gauges that are bonded to the layers of geosynthetic reinforcement. Attaching the gauges to the geosynthetic is a challenging process, as the use of overly rigid bonding techniques can affect the accuracy of measured strains. This paper describes two commonly used methods for foil strain gauge attachment, which were utilized in parallel to instrument the geotextile layers in a GRS bridge abutment. For this project, GRS construction was utilized, with closely spaced geosynthetic layers and a well-compacted, high-quality granular soil being used to construct two reinforced soil bridge abutments; these abutments were then used to provide direct bearing support for structural bridge members. The effect of the gauge type and the attachment technique on the strain readings will be presented. Finally, practical issues related to gauge survivability will be discussed.

  • Record URL:
  • Availability:
  • Supplemental Notes:
    • © 2018 American Society of Civil Engineers.
  • Corporate Authors:

    American Society of Civil Engineers

    New York, New York  United States 
  • Authors:
    • Talebi, Majid
    • Meehan, Christopher L
    • Poggiogalle, Tyler M
  • Conference:
    • IFCEE 2018
    • Location: Orlando Florida, United States
    • Date: 2018-3-5 to 2018-3-10
  • Publication Date: 2018-6

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 257-266
  • Monograph Title: IFCEE 2018: Developments in Earth Retention, Support Systems, and Tunneling

Subject/Index Terms

Filing Info

  • Accession Number: 01686088
  • Record Type: Publication
  • ISBN: 9780784481608
  • Files: TRIS, ASCE
  • Created Date: Oct 4 2018 4:58PM