Engineering Site Investigation for Foundation Design and Construction in Shale and Sandstone Derived Soils of Okitipupa Area, Southwestern Nigeria
Falowo Olusola Olumuyiwa(1*)
(1) RUFUS GIWA POLYTECHNIC, OWO, NIGERIA
(*) Corresponding Author
Abstract
Geotechnical and geo-electrical investigations of Okitipupa has been carried out with the major objectives of establishing the subsoil/geology, evaluate the geotechnical properties and recommend appropriate foundation alternatives for building foundation construction. Seven borings were carried out with hand auger at two cone penetration test locations, and representative samples were collected and analyzed in the laboratory in accordance with relevant geotechnical engineering standards. In addition, six vertical electrical soundings (VES) were also conducted using Schlumberger configuration. The result of VES delineates three major geologic sequence comprising the topsoil/caprock, sand surficial aquifer, and sand intermediate aquifer. The topsoil has resistivity range of 242 – 1503 ohm-m and thickness of 3.4 - 20.9 m composed of clay sand and sand. This layer is capable of supporting shallow foundation such as simple spread, raft of reinforced concrete, with recommended allowable bearing pressure of 100 KN/m2 at depths of 1.0 m and 3.2 m in the northern and southern part of the study area respectively. The estimated settlement are less than 50 mm using foundation width of 0.6 m, but could be reduced by almost 50% if the width is greater than or equal to 2 m. The groundwater level is very deep (>10 m) and may not likely threatens the integrity of the foundation structures. The estimated allowable bearing capacity for strip footing (203 – 980 KN/m2), square footing (608 – 2940 KN/m2) within 1.4 m depth is appropriate. The capacity of driven (deep foundation) circular piles of diameters 400mm, 500mm, and 600mm, the recommended pile capacity varies at depth of 5 m (69 – 124 KN), 10 m (225 – 378 KN), and 15 m (470 – 766 KN), while that of bored circular pile ranges from (36 – 75 KN), 10 m (93 – 180 KN), and 15 m (170 – 317 KN).
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Adedayo, D.O., Akintunde, A.S., Olorode, A.O. (2016) Application Of Geotechnical And Geophysical Methods To Investigate Tilt Buildings At Lagos State, Nigeria. IOSR Journal of Applied Geology and Geophysics (IOSR-JAGG), Volume 4, Issue 5 Ver. II, pp 21-28. DOI: 10.9790/0990-0405022128 Adigun, M., Olatunji, K., Alaboru, F., Ogunbajo. A. (2014) Evaluation of Sub-Soil Geotechnical Properties for Shallow Foundation and Pavement Design in LASPOTECH, Ikorodu Campus, Lagos State, Nigeria IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE), Volume 11, Issue 6 Ver. IV (Nov- Dec. 2014), PP 40-47. Akintorinwa, O. J., Oluwole S. T. (2018) Correlation of geotechnical parameters with geological formations in a basement complex and its implications on civil structure foundation. International Journal of Physical Sciences Vol. 13(9), pp. 147-162, 16 May, 2018. DOI: 10.5897/IJPS2017.4681. Article Number: EC263EC57035, ISSN 1992-1950 American Petroleum Institute (API) (1984) Recommended practice for planning, designing and constructing fixed offshore platforms, 15th ed. API RP2A. ASTM (2006) Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System). Badmus, B.S., Akinyemi, O.D., Olowofela, J.A., Folarin, G.M. (2012) 3D electrical resistivity tomography survey for the basement of the Abeokuta terrain of Southwestern Nigeria. J. Geol. Soc. India 80, 845. https://doi.org/10.1007/s12594-012-0213-x. Bell, F.G. (2007) Engineering Geology. Elsevier Ltd; ISBN: 978-81-312-1117-5 Bowles, J.E. (1988) Foundation Analysis and Design. McGraw-Hill Book Company, Singapore. British Standard Institutions (1990) Methods of Test for soils for Civil Engineering Purposes. B.S 1377: Part 2, pp 8 – 200 Bustamante, M., Gianeselli (1982) Pile Bearing Capacity Predictions by Means of StaticPenetration CPT. Proceedings of 2nd European Symposium on Penetration Testing, Amsterdam, Vol. 2, 493-500. CFEM (1992) Canadian Foundation Engineering Manual. Third Ed, Canadian Geotechnical Society, BiTech. Publishers, Vancouver, 512 p. Coerts, A.O. (1996) Analysis of static cone penetration test data for subsurface modelling. A methodology – PhD Thesis, Nethernals Geographical Studies 210, 263pp Coker, J.O. (2015) Geophysical and Geotechnical Assessment of Foundation Failure: A Case Study of Library Complex Area, Lagos State Polytechnic, Ikorodu, Lagos, Nigeria. Research Journal in Engineering and Applied Sciences. Vol.3, No 7. Coker, J.O., Makinde, V., Adesodun, J.K., Mustapha, A.O. (2013) Integration of Geophysical and Geotechnical Investigation for a Proposed New Lecture Theatre at Federal University of Agriculture, Abeokuta, South Western Nigeria. International Journal of Emerging Trends in Engineering and Development Issue 3, Vol.5: 338-348 Cosenza, P., Marmet, E., Rejiba, F., Cui, Y. J., Tabbagh, A., Charlery, Y. (2006) Correlations between geotechnical and electrical data: a case study at Garchy in France. Journal of Applied Geophysics, 60, 165–178. Das, B.M. (2004) Principles of Foundation Engineering 5th Edition. Brooks/Coe Publishing Co., California. Debeer, E. E. (1963) The scale effect in the transposition of the results of deep sounding tests on the ultimate bearing capacity of piles and caisson foundations. Geotechnique, Vol. 13, No. 1, pp.39-75. deRuiter, J., Beringen, F.L. (1979) Pile Foundations for Large North Sea Structures. Marine Geotechnology, Vol. 3, No. 3, 1979, pp. 267-314. Federal Ministry of Works and Housing (1972) Highway Manual Part 1 Road Design, Federal Ministry of Works and Housing, Lagos. Ibitoye, F.P, Ipinmoroti, F.V., Salami, M., Akinluwade, K.J., Adeyinka T.T, Adetunji A.R. (2013) Application of Geophysical Methods to Building Foundation Studies, International Journal of Geosciences, 2013, 4, 1256-1266 pp, 2013 (http://www.scirp.org/journal/ijg). http://dx.doi.org/10.4236/ijg.2013.49120 Iloeje, M. P. (1981) A new Geography of Nigeria. Longman Nigeria, 26 - 28. Jegede, G. (2000). Effect of soil properties on pavement failure along the F209 highway at Ado-Ekiti, Southwestern Nigeria. Journal of Construction and Building Materials, vol. 14, pp. 311-315. Jones, H.A., Hockey, R.D. (1964) The Geology of Part of South-Western Nigeria, Geological Survey Nigeria Bulletin, 31: 56 - 86. Jones, H.A., Hockey, R.D. (1964) The Geology of Part of South-Western Nigeria, Geological Survey Nigeria Bulletin, 31: 56 - 86. Koefeod, O. (1979) Geosounding principles, I. Resistivity sounding measurements, Elservier Scientific Publishing Comp, Amsterdam; 275. Lee, J., Salgado, R. (1999) Pile Design Based on Cone Penetration Test Results. INDOT-FHWA Joint Transportation Research Program. Purdue Univ., FHWA/IN/JTRP-99/8, Final Report Lunne, T; Robertson, P.K and Powell, J.J.M. (1997) Cone Penetration Testing in Geotechnical Practise, Blackie Academic and Professional, London, 312p. Mazlan, A. (2007) Correlation Between Cone Penetration Test and Bearing Capacity for ShallowFoundation. Master’s Thesis. Universiti Teknologi Malaysia. Lunne, T; Robertson, P.K., Powell, J.J.M. (1997) Cone Penetration Testing in Geotechnical Practise, Blackie Academic and Professional, London, 312p. Murthy, V.N.S. (2002) Principles and Practices of Soil Mechanics and Foundation Engineering. CRC Press, Florida. Ngah, S.A., Nwankwoala, H.O. (2013) Evaluation of Sub-Soil Geotechnical Properties for Shallow Foundation Design in Onne, Rivers State, Nigeria The International Journal Of Engineering And Science (IJES), Volume 2, Issue 11, pp 08-16. Nwankwoala, H.O., Warmate, T. (2014) Geotechnical Assessment of Foundation Conditions of a Site in Ubima, Ikwerre Local Government Area, Rivers State, Nigeria. International Journal of Engineering Research and Development IJERD 98: 50 - 63. Nwankwoala, H.O., Amadi, A.N. (2013) Geotechnical Investigation of Sub-soil and Rock Characteristics in parts of Shiroro- Muya-Chanchaga Area of Niger State, Nigeria. International Journal of Earth Sciences and Engineering, Vol.61: 8 - 17. Okosun, E.A. (1998) Review of the Early Stratigraphy of Southwestern Nigeria, Journal of Mining and Geology, 34 (1), 27 - 35. Omatsola, M.E., Adegoke, O.S. (1981) Tectonic Evolution and Cretaceous Stratigraphy of the Dahomey Basin, Journal of Mining and Geology, 8: 30-137. Omosuyi, G.O. (2001) Geophysical and Hydrogeological Investigations of Groundwater Prospects in the Southern Part of Ondo State, Nigeria. Ph.D Thesis, Department of Applied Geophysics, Federal University of Technology, Akure, Nigeria. 195pp. Omosuyi, G.O., Ojo, J.S., Olorunfemi, M.O. (2007) Hydrochemical Investigation of Groundwater in Okitipupa area, Ondo State, Southwestern Nigeria. Journal of African Water Resources and Environment (Aquaterra). 1 (2), 3 - 13. Osinowo, O.O., Falufosi, M.O. (2018) 3D Electrical Resistivity Imaging (ERI) for subsurface evaluation in pre-engineering construction site investigation NRIAG Journal of Astronomy and Geophysics. https://doi.org/10.1016/j.nrjag.2018.07.001 Osinowo, O.O., Akanji, A.O., Akinmosin, A. (2011) Integrated geophysical and geotechnical investigation of the failed portion of a road in Basement Complex terrain, southwestern Nigeria. RMZ – Mater. Geoenviron. 58 (2), 143–162. Owamah, H.I., Atipko, E., Ukala, D.C., Apkan, E.J. (2018) Assessment of Some Geotechnical Properties of Nigerian Coastal Soil: A Case-Study of Port-Harcourt Beach Mud. Appl. Sci. Environ. Manage. Vol. 22 (2) 228 – 233. https://dx.doi.org/10.4314/jasem.v22i2.13 Oyedele, K.F., Oladele, S., Adedoyin, O. (2011) Application of Geophysical and Geotechnical Methods to Site Characterization for Construction Purposes at Ikoyi, Lagos, Nigeria Journal of Earth Sciences and Geotechnical Engineering, Vol.1, No.1, 87-100. Nottingham, L. C. (1975) Use of quasi-static friction cone penetrometer data to predict load capacity of displacement piles. Ph. D. Thesis, Dept. of Civil Engineering., University of Florida, 553p. Robertson, P.K. (1990) Soil classification using the cone penetration test. Can Geotech J 27:151-158. Sanglerat, G. (1972) The Penetrometer and Soil Exploration. Elsevier Publishing Co., Amsterdam. Schmertmann, J.H. (1978) Guidelines for Cone Penetration Test: Performance and Design. U.S. Dept. of Transportation, Washington, D.C. Schmertmann, J. H. (1970) Static Cone lo Compute Static Settlement Over Sand,” Journal of the Soil Mechanics and Foundations Division. ASCE. Vol. 96. No. SM3. Proc. Paper 7302, pp. 101 l-1043. Skempton, A.W., MacDonald, D.H. (1956) The Allowable Settlement of Buildings, Proc. Inst. of Civil Engineers, Part 3, Vol. 5, pp. 727-784. Sudha, K., Israil, M., Mittal, S., Rai, J. (2009) Soil characterization using electrical resistivity tomography and geotechnical investigations. Journal of Applied Geophysics, Elsevier, 67, 74 – 79. Telford, W.M., Geldart, L.P., Sheriff, R.E. (1990) Applied Geophysics, second ed. Cambridge University Press. Tezaghi, K., Peck, R. B. (1967) Soil Mechanics in Engineering Practice, John Wiley & Sons, Inc., 2nd edition, New York, 1967, p. 491. Tomlinson, M. J. (1999) Foundation Design and Construction 6th Edition. Vickers B (1978) Laboratory Work in Soil Mechanics, Second Edition Vander Velpen, B.P.A. (1988) Resist Version 1.0, M.sc Research Project, Delft, Netherlands. Webb. D. L. (1969) Settlement of Structures on deep alluvial sand sediments in Durban, South Africa,” British Geotechnical Society Conference on In-Situ Investigations in Soils and Rocks, Session III, paper 16, London, England, pp. 133-140.
DOI: https://doi.org/10.22146/jag.55091
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