Engineering Challenges of Tropical Soil Hazards - Disintegration, Weathering, and Shear Failure

Tropical soils, particularly in Southeast Asia, present significant geohazard challenges due to their intricate mineralogy and variable properties. This paper evaluates the impacts of weathering, disintegration, and shear failure, employing field investigations and laboratory testing to assess soil behaviour under extreme conditions. Key findings reveal that heavy rainfall and rapid urbanisation heighten the risks of slope failure and foundation instability, thereby complicating hazard mitigation efforts. The research underscores the need for enhanced site characterisation and advanced engineering solutions that consider the unique characteristics of tropical soils. Implications for engineering practices emphasise the importance of adopting specialised geotechnical methodologies for design and construction in these regions.