A Multi-Dimensional Approach to Revealing Causes of Pavement Failures: Case Study of Minna – Suleja Highway, North-Central Nigeria
American Journal of Water Science and Engineering
Volume 6, Issue 3, September 2020, Pages: 81-88
Received: Jul. 27, 2020;
Accepted: Aug. 8, 2020;
Published: Aug. 20, 2020
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Umar Muhammed Umar, Department of Geology and Mining, Faculty of Applied Sciences and Technology, Ibrahim Badamasi Babangida University, Lapai, Nigeria
Ejepu Jude Steven, Department of Geology, School of Physical Sciences, Federal University of Technology, Minna, Nigeria
Aweda Abdulwahid Kolawale, Department of Geology and Mining, Faculty of Applied Sciences and Technology, Ibrahim Badamasi Babangida University, Lapai, Nigeria
Ozoji Tochukwu Malachi, Department of Geology and Mining, Faculty of Applied Sciences and Technology, Ibrahim Badamasi Babangida University, Lapai, Nigeria
Adamu Lukman Musa, Department of Earth Sciences, Faculty of Natural Sciences, Kogi State University, Anyigba, Nigeria
Abdulkadir Sani Ahmad, Department of Geology and Mining, Faculty of Applied Sciences and Technology, Ibrahim Badamasi Babangida University, Lapai, Nigeria
Umoru Charles Ile, Department of Strategic Space Application, National Space Research and Development Agency, Abuja, Nigeria
Remote sensing, geotechnical studies and geophysical data have been applied to determine the causes of the continuous pavement failure of the Minna – Suleja highway in a part of North-Central Nigeria. In this study, remotely sensed data in the form of Landsat 8 OLI and SRTM DEM were processed to extract structural lineaments and drainage pattern of the area. Geotechnical evaluation of soil samples such as grain size analyses, Compaction Test, Atterberg Limits and California Bearing Ratio (CBR) determination were also conducted. Geophysical data acquired were in the form of lateral resistivity profiling data at 500 m intervals and twenty-one Vertical Electrical Sounding (VES) spread across the selected sections of the road. Lineament analysis revealed predominant NNE-SSW trending structures. A notable percentage of the Lineaments trend NW- SE. Both sets of lineaments constitute a conjugate fracture system. CBR values in both portions range from 5 – 15% in soaked condition and unsoaked condition at OMC. Plasticity index range from 14 – 30 and 19 – 45 in both portions. Quantitative interpretation of the VES results established the presence of mostly three geologic layers which are: Clayey top soil, sand/lateritic sand and weathered basement. Resistivity values range from 20 Ωm to 300 Ωm for the top soil layer. The depths of this layer were generally less than 3 m. Preponderance of intersections of lineaments along failed portions account for near surface fractures, making these zones weak. This can be linked to low resistivity of the near surface materials and shallowness of the water bearing zones especially on the failed portions on which the road pavement foundation was laid. A distinction could not be made on the results of the geotechnical properties in both the failed and stable portions of the road. Hence, failure factors are not linked to the geotechnical properties of the soils.
Umar Muhammed Umar,
Ejepu Jude Steven,
Aweda Abdulwahid Kolawale,
Ozoji Tochukwu Malachi,
Adamu Lukman Musa,
Abdulkadir Sani Ahmad,
Umoru Charles Ile,
A Multi-Dimensional Approach to Revealing Causes of Pavement Failures: Case Study of Minna – Suleja Highway, North-Central Nigeria, American Journal of Water Science and Engineering.
Vol. 6, No. 3,
2020, pp. 81-88.
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