Numerical simulation on mining-induced water inrushes related to geologic structures using a damage-based hydromechanical model

摘要: A large number of statistics indicate that water inrush has a direct relationship with geological structures such as fault and karst collapse columns. Understanding the mechanism inrushes controlled by geologic is vital importance for adopting effective measures to prevent their occurrence. The work begins formulization damage-based hydromechanical model based on elastic damage theory. Next, numerically implemented finite element method employing package called COMSOL Multiphysics, also validated against some existing experimental observations. Finally, used simulate mining-induced groundwater when effect faults columns considered in numerical simulation, suggestive conclusions preventing optimizing underground mining operations are drawn.