Geotechnical Investigation of a Proposed Dam Project, Iyah Gbede, Kogi State, Nigeria

Oyanameh O.e, Olabode O.o, Korode A.i, Osisanya W.o and Fatoye O.v
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Oyanameh O.e: Department of Earth Sciences, Anchor University, Ayobo, Lagos, Nigeria
Olabode O.o: Department of Geology, University of Ibadan, Ibadan, Nigeria
Korode A.i: Department of Petroleum Engineering and Geosciences, Petroleum Training Institute, Effurun, Nigeria
Osisanya W.o: Department of Physics, University of Benin, Benin City, Nigeria
Fatoye O.v: Department of Earth Sciences, Anchor University, Ayobo, Lagos, Nigeria

International Journal of Research and Innovation in Applied Science, 2021, vol. 6, issue 7, 33-42

Abstract: Geotechnical study was conducted at the proposed Dam project of Iyah Gbede, Ijimu Local Government Area of Kogi State with the aim of evaluating the subsoil layers that constitute the foundation soils and their competence as foundation soils for the civil engineering structures. The study involved drilling of three (3) boreholes and eleven (11) trial pits as well as Standard Penetration Test (SPT) to obtain the in situ strength parameters of the sandy layers. The lithological formations that constitute the study area layers are lateritic top soil, grey brown sandy clay, yellowish brown coarse sand, gravel and weathered rock. All the soils have average natural moisture content because it agrees with the average range of (5 – 15%) specified by Federal Ministry of Works and Housing FMWH, (1997) for civil engineering construction which is an indication of low water absorption capacities of the soil materials. The results of the geotechnical parameters of the soils obtained indicate good characteristics as construction materials with good bearing strength, good baseline information and foundation design for the establishment of the proposed dam site.

Date: 2021
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