Mechanical Characterisation of Time-dependent Behaviour of Intact Rocks under various Stress Conditions

This thesis explores the time-dependent deformation in rocks under constant stress. By conducting extensive laboratory experiments on various rock types, this research develops a new model that helps predict failure time and estimate long-term strength. This model enhances our ability to forecast the durability and stability of geotechnical structures over extended periods. The significance of this work lies in its potential to improve the safety and effectiveness of infrastructure in mining, civil engineering, and energy sectors. It provides engineers with more reliable tools for ensuring the long-term integrity of structures built on or within rock masses, addressing a vital gap in our understanding of how geological materials behave under prolonged stress.