Description

This theme establishes the scientific and engineering foundations of geotechnical engineering by examining the fundamental principles governing soil, rock, and other geological materials under natural and engineered conditions. It encompasses engineering geology, geological formation processes, soil classification, rock mass characteristics, mineralogical composition, particle morphology, soil fabric, density, porosity, permeability, compressibility, shear strength, and mechanical behaviour. Particular emphasis is placed on effective stress principles, stress–strain relationships, consolidation, deformation, failure mechanisms, and the influence of geological heterogeneity on geotechnical performance.