In expansive soils such as loess and calcareous materials, foundations can experience significant settlement and heaving over time, leading to structural instability. A comparative analysis of existing geotechnical reports from both countries, using a mixed-method approach including field investigations and literature review to identify common challenges and solutions. Foundation designs showed an average reduction in settlement by 20% when incorporating expansive soil treatment techniques, with significant variability between sites due to differing soil characteristics. The replicated geotechnical practices can significantly improve the durability of infrastructure projects in both Sudan and Uganda, reducing long-term maintenance costs and enhancing structural integrity. Adopting standardised design guidelines for expansive soils is recommended, with ongoing research into site-specific variability to refine these recommendations. The maintenance outcome was modelled as Y₈ₓ=₀+₁X₈ₓ+uᵢ+₈ₓ, with robustness checked using heteroskedasticity-consistent errors.
Muteesa et al. (Sat,) studied this question.
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