Hydromechanics models of three mining sites will be realized to try to link seismicity triggering to outside forcing such as variation in water levels. To realize these models, a detailed structural model of the sites will be produced to better understand the configuration of the mining sites and the potentially active faults. Then, hydromechanical models will allow to confront the seismicity evolution with the modification of equilibrium induced from flow in the vicinity of active structures. The relative importance of keys factors (e.g. increase or decrease in water level) influencing the variation of seismicity will be assessed through these models. Finally, the work accomplished could help highlight preponderant parameters with a comparison of the models between the different sites.