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The aim is to evaluate the behavior of geotechnical foundations on expansive soils in Sudan and propose solutions to mitigate associated issues.

March 19, 2026Open Access

Geotechnical Foundations on Expansive Soils in Sudan: A Seychelles Case Study

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Field investigation demonstrates settlement challenges in expansive soils, highlighting the need for alternative foundation designs.

The aim is to evaluate the behavior of geotechnical foundations on expansive soils in Sudan and propose solutions to mitigate associated issues.
Field investigations characterized expansive soils using tests for water content, swell pressure, and shrinkage strain.
Laboratory tests assessed strength and deformation characteristics under varying moisture.
Geotechnical software simulated foundation performance over time, addressing uncertainties in soil parameters.
Expansive soils could cause up to 15% settlement under dry conditions.
Swell pressures reached up to 20 kPa in laboratory tests.
Simulation models predicted a maximum settlement of 30 mm after 5 years for the proposed design.

Hewitt-Hartley et al. (2014) studied this question.

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