Menu Close

Geotechnical Characterization of Soil in Uya Oro/Eyoabsi Oron LGA in Akwa Ibom State

This research work focused on geotechnical characterization of soils from Uya Oro/Eyoabsi in Oron LGA, Akwa Ibom State, aimed at generating location based engineering parameters for pavement and foundation design in the coastal plain environment. Laboratory testing were done in accordance with BS 1377 which revealed that the soils have low-plasticity cohesive materials (LL = 30%, PI = 10%) existing in a firm to stiff in-situ state (LI = 0.25) with a negative AASHTO Group Index (–4), indicating relatively favorable classification as subgrade material. However, strength based evaluation showed limited load resistance, with a dry unit weight of 17.85 kN/m³, unconfined compressive strength of 49 kN/m², and undrained shear strength of 24.5 kN/m², these results highlight the vulnerability of the soil to performance less under increased loading and wet conditions. The findings demonstrate that reliance on generalized coastal-plain parameters can be misleading, as acceptable index properties do not necessarily translate to sufficient structural capacity. The study therefore provides evidence based guidance which emphasizes moisture control, drainage provision and targeted stabilization as prerequisites for sustainable use of the soils in road pavement and foundation construction within Uya Oro/Eyoabsi and similar tropical coastal terrains.