Electrical Resistivity-Based Geotechnical Evaluation of Subsurface Competence for Structural Foundation Design in Federal University Otuoke

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@article{1709708,
      author = {Adejumo Patrick Pius, Ochu  Abdulmajeed, Okene Doutimi tebekaemi, Achugwo Chimezie Nathanel , Ohwerhi, Paul Emudiaga},
      title = {Electrical Resistivity-Based Geotechnical Evaluation of Subsurface Competence for Structural Foundation Design in Federal University Otuoke},
      journal = {Iconic Research And Engineering Journals},
      year = {2025},
      volume = {9},
      number = {1},
      pages = {1777-1786},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1709708.pdf},
      abstract = {Resistivity survey was conducted using the Vertical Electrical Sounding (VES) approach at Federal University Otuoke, Bayelsa State, to assess geophysical parameters relevant for evaluating subsurface suitability for building foundations. A total of eight (8) VES stations were investigated, employing the Schlumberger array for data acquisition, with current electrode spacing ranging from 1.0 to 140.0 meters. The acquired VES data were interpreted using IPI2Win+IP software. The Schlumberger array facilitated systematic data collection. A one-dimensional (1D) numerical inversion of the DC resistivity data was applied to improve result accuracy and achieve the study?s objectives. The 1D inversion models from each VES point were utilized to generate geo-electric sections, which reveal the primary geo-electrical features of the subsurface geological units within the area. The identified subsurface layers include topsoil, clay, sandy clay, dry sand, and saturated fine/coarse sand. For safe structural development in the region, it is recommended that the topsoil be excavated down to the dry sand layer, which represents a more stable and competent foundation stratum to prevent structural failure or deformation.},
      keywords = {Dry Sand,  Schlumberger  Array,  Subsurface  Competency, Foundation Failure},
      month = {July},
  }