Investigation of Geohazard Potential of Highway Embankment Slopes on Expansive Clay by Using Geophysical Methods


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by J. Hossain, Ph.D. Candidate; Department of Civil Engineering, The University of Texas at Arlington, Arlington, TX 76019, jubair.hossain@mavs.uta.edu,
M.S. Hossain, Asscociate Professor; Department of Civil Engineering, The University of Texas at Arlington, Arlington, TX 76019, hossain@uta.edu,
N. Lozano, Transportation Engineer; IV, Bridge Section Dallas District, Texas Department of Transportation 4777 E. HWY 80, Mesquite, TX 75150, nicasio.lozano@txdot.gov,
M.S. Khan, Graduate Research Assistant; Department of Civil Engineering, The University of Texas at Arlington, TX 76019,
G. Kibria, Graduate Research Assistant; Department of Civil Engineering, The University of Texas at Arlington, TX 76019,



Document Type: Proceeding Paper

Part of: GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering

Abstract: Natural disasters due to failure of geo-structures present an important threat all over the world. Each year, rain induced slope failures cause significant damages in infrastructures and environments, as well as tragic losses of human lives around the world. Therefore, it is important and necessary to improve our knowledge of slope failure mechanism and ways to mitigate slope failures. At present, soil drilling and sampling method are used for the determination of geo-hazard potential of a site. However, this method offers information at certain points, not a general view of the site. Geophysical methods have the possibility to give an image of the subsurface. The objective of the current paper is to present the results of a site investigation using Resistivity Imaging (RI) and Multi-channel Analysis of Surface Wave (MASW) for a highway slope failure in Texas, USA. The site investigation was also conducted using soil test borings. The investigation results were utilized to identify possible failure plan and to determine the associated geo-hazard potential of the site. The preliminary results indicate that geophysical methods can be successfully utilized to determine the geohazard potential of a site.

Subject Headings: Slopes | Geohazards | Failure analysis | Site investigation | Highways and roads | Expansive soils | Clays | Embankment (transportation) | Surface waves | Forensic engineering | Rainfall | North America | United States | Texas | Rhode Island

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