Imaging voids beneath bridge bent using electrical resistivity tomography.

Details

• Creators:
  Anderson, Neil
• Corporate Creators:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Corporate Contributors:
  United States. Dept. of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Tomography
  • Electrical resistivity
  • Geophysics
  • Bents
  • Bridge foundations
  • Air voids
  • Moisture damage
  • Rocks
• Publication/ Report Number:
  NUTC R283 ; Project #00035795
• Resource Type:
  Tech Report
• Geographical Coverage:
  Missouri
• Corporate Publisher:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Abstract:
  Five electrical resistivity tomography (ERT) profiles and borehole control were acquired beneath two bridges on the bank of the ; Gasconade River in order to determine extension of the underground water-filled openings in rock encountered during a drilling ; program, to locate other possible water-filled rock openings, and to map variations in rock quality in immediate proximity to the ; bridge foundations. ; The geophysical program was successful. Two east-northeast trending fracture zones were identified. Competent rock was ; differentiated from fractured rock. Extend of the water-filled rock opening was mapped based on the geophysical, borehole and grout ; data. A conceptual model of the development of the water-filled opening was proposed.
• Format:
  PDF
• Funding:
  DTRT06-G-0014
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27934/dot_27934_DS1.pdf
• File Type:
  [PDF - 4.08 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:c682d6b3046a5fac1ab760e53e3b3a19b68580485df9a66c33f85cd0963b5782