Shear Strength Behaviour of Unsaturated Soils: A Review
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Abstract
Soil in which the voids contain both water and air is typically referred to as unsaturated soil. In recent times, the attention in both research and practical applications regarding the investigation of the shear strength in unsaturated soil has been a growing. For the safe geotechnical design of structures such as embankment slopes, foundations, and retaining walls, precise assessment of the shear strength of soil is essential. The review identifies gaps in the current understanding of unsaturated shear strength behavior, particularly in relation to specific soil types and environmental conditions. It emphasizes the need for more extensive research and the development of more accurate predictive models. The study concludes by outlining potential future directions in the study of unsaturated shear strength behavior, with the aim of enhancing the safety and efficiency of geotechnical structures.
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