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Site Characterization during Bridge Foundation Construction Using Electrical Resistivity Tomography

Department of Geosciences & Geologic & Petroleum Engineering, Missouri University of Science and Technology, 129 McNutt Hall, 1400 N. Bishop, Rolla, MO 65409, USA

Special Issues: Geophysical imaging in karst terrain

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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Keywords ERT; resistivity; karst terrain; solution-widened joints; dissolution; site characterization; cavity

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

References

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  • 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.

 

This article has been cited by

  • 1. Aleksandra V. Varnavina, Aleksey K. Khamzin, Shishay T. Kidanu, Neil L. Anderson, Geophysical site assessment in karst terrain: A case study from southwestern Missouri, Journal of Applied Geophysics, 2019, 103838, 10.1016/j.jappgeo.2019.103838

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Copyright Info: 2016, Evgeniy V. Torgashov, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

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