Assessment of Geotechnical Investigation Techniques for Evaluating Planning and Parametric Mapping in the Niger Delta Sub-region of Nigeria
Published: 2022-12-31
Page: 236-247
Issue: 2022 - Volume 5 [Issue 3]
Tammy Morrison
Department of Geology, Faculty of Sciences, Rivers State University, Nigeria.
Teme Songo Clifford
Department of Geology, Faculty of Sciences, Rivers State University, Nigeria.
Erefama Ekine Esonanjor
*
Department of Geology, Faculty of Sciences, Rivers State University, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
Aim: The goal of this study was to generate geological engineering parameters that could be used for Development planning and control purposes.
Study Design: The study was designed to use the various parameter values to produce iso-contour maps using Surfer II computer software.
Place and Duration of Study: The research was conducted at Borokiri Sandfill around the Borokiri axis of Port Harcourt (the eastern Niger Delta) between February and June 2020.
Methodology: This involved a combination of field sampling and laboratory analysis. The fieldwork included boring, particle analysis, and in-situ testing, while the laboratory analysis included oedometer and triaxial tests. The in-situ results were integrated with laboratory analysis to obtain a comprehensive understanding of the geological conditions.
Results: The results show that the clays in the study area had high cohesion, ranging from 38 kPa to 90 kPa. The friction angles ranged from 4 to 5, and the settlement values ranged between 18 mm and 84 mm. The strength parameter is a critical factor for understanding the stability of the soil, and the results obtained indicate that the soil in the study area is relatively stable. The data obtained from the study was processed using Surfer II computer software to produce iso-contour maps. These maps are useful for reconnaissance studies as they provide a regional view of the area, which is excellent for development planning.
Conclusion: The study generated essential engineering parameters that can be used for development planning and control purposes in Borokiri Sandfill. The methodology used in the research, which involved a combination of field sampling and laboratory analysis, provides a comprehensive understanding of the geological conditions in the area. The iso-contour maps generated from the data are useful tools for development planning and control.
Keywords: Geological engineering mapping, bearing capacity, settlement, development planning
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References
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