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Site Characterization during Bridge Foundation Construction Using Electrical Resistivity Tomography

  • Received: 15 December 2015 Accepted: 13 July 2016 Published: 21 July 2016
  • A shallow underground water-filled cavity was encountered in limestone bedrock during the construction of a new column footing for the Gasconade River Bridge over Interstate 44. Five electrical resistivity tomography (ERT) profiles and borehole control were acquired in immediate proximity to the existing and the new column footings in order to assess the integrity of the rock beneath the foundation columns and characterize the encountered cavity. Two parallel southwest- northeast trending fracture zones were identified on the acquired ERT profiles and competent rock was differentiated from more extensively fractured rock. The volumetric extent of the void was mapped based on the interpretation of the ERT, borehole and injected grout data. A conceptual model for the development of the water-filled cavity was proposed.

    Citation: Evgeniy V. Torgashov, Aleksandra V. Varnavina. Site Characterization during Bridge Foundation Construction Using Electrical Resistivity Tomography[J]. AIMS Geosciences, 2016, 2(3): 201-213. doi: 10.3934/geosci.2016.3.201

    Related Papers:

  • A shallow underground water-filled cavity was encountered in limestone bedrock during the construction of a new column footing for the Gasconade River Bridge over Interstate 44. Five electrical resistivity tomography (ERT) profiles and borehole control were acquired in immediate proximity to the existing and the new column footings in order to assess the integrity of the rock beneath the foundation columns and characterize the encountered cavity. Two parallel southwest- northeast trending fracture zones were identified on the acquired ERT profiles and competent rock was differentiated from more extensively fractured rock. The volumetric extent of the void was mapped based on the interpretation of the ERT, borehole and injected grout data. A conceptual model for the development of the water-filled cavity was proposed.


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    [1] I-44 Gasconade River Bridge Rehabilitation: New-to-Missouri Construction Technique. Missouri DOT, 2011. Available from: http://www.modot.org/central/major_projects/I-44GasconadeRiverBridge.htm.
    [2] Geologic map of the Alley Spring Quadrangle, Shannon County, Missouri, David J. Weary and Randall C. Orndorff, 2012. Available from: http://pubs.usgs.gov/sim/3161/pdf/sim3161_alleyspring_mo.pdf.
    [3] Gamble EE. Geomorphic Study in the Upper Gasconade River Basin, Laclede and Texas Counties, Missouri: Soil Survey Investigations Report No. 43. 1993. Available from: http://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052869.pdf
    [4] Mugel DN and Imes JL. (2003) U.S. Geological Survey, Water-Resources Investigations Report 03-4165, Geohydrologic Framework, Ground-Water Hydrology, and Water Use in the Gasconade River Basin upstream from Jerome, Missouri, including the Fort Leonard Wood Military Reservation: 10-22.
    [5] Orndorff RC, et al. (2001) U.S. Geological Survey Karst Interest Group Proceedings, Water-Resources Investigations Report 01-4011: 18-24.
    [6] Blanc TJ. (2001) Missouri Department of Conservation, Gasconade River Watershed Inventory and Assessment. 12-16.
    [7] Miller DE and Vandike JE. (1995) Missouri Department of Natural Resources: Groundwater Resources of Missouri. Missouri State Water Plan Series, 2: 46-47
    [8] Torgashov EV. (2011) Imaging the Subsurface in Karst Terrain Using Electrical Resistivity Tomography. Missouri University of Science and Technology, PhD dissertation, 71-91.
    [9] Smotherman B. (2010) The Influence of Lineaments on the Geology of Missouri. Available from: http://academic.emporia.edu/aberjame/student/smotherman2/globaltect2.htm.
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  • © 2016 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)
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