Subsurface Fluid Injection and Induced Fault Reactivation with Hydro-Mechanical Coupling Simulation

Currently, scientific research plays a pivotal role in addressing societal challenges such as the transition to green renewable energy, climate crisis mitigation, and the maintenance of global stability through reliable energy and water supplies. Subsurface systems and their contained resources are increasingly recognised as a common thread in tackling these issues. Consequently, the ability to predict, optimise, and ultimately control fluid movement and its response to multi-physics coupling processes in fractured subsurface environments has become a critical research area. Three crucial underground engineering applications: hydro-power tunnel operations, pressurised tunnel design, and hydraulic fracturing are researched. These activities introduce complex hydro-mechanical interactions that can lead to challenges such as tunnel leakage, fault reactivation, and fracture propagation.