Stadium foundations constructed in geologically sensitive areas require careful geotechnical evaluation to ensure structural safety and longevity. This study presents a sectional analysis of geotechnical results from building sites located near significant geological faults that may compromise structural integrity. This proposal stems from the excessive vibrations or collapses in some stadiums around the globe, often resulting from inadequate assessments of geological fault extensions and unexpected ground movements. To investigate this issue, three boreholes were drilled, and soil samples were collected at specific depths and tested. It was observed that some proposed stadium locations lie above active geological faults, necessitating the use of a hybrid footing design. A sectional analysis of the central wing of a proposed stadium was conducted to demonstrate that the foundation design is best understood when examined in discrete sections. Settlement predictions at the proposed site indicated significant activity between depths of 9 and 10 m. These results further corroborate the adoption of a hybrid footing system. Accordingly, this study proposes the implementation of a hybrid footing system incorporating circular, rectangular, and continuous footings, with estimated bearing capacities of 332.32 kN/sqm, 311.04 kN/sqm, and 586.01 kN/sqm, respectively. The findings underscore the critical role of sectional geotechnical analysis in foundation planning and highlight the effectiveness of hybrid footing systems in mitigating risks associated with underlying geological faults.
Alalade et al. (Wed,) studied this question.
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