Throughout centuries there are many recorded cases of collapse of sandy deposits with considerable economic losses, loss of human life and damage to the environment caused by the dynamic liquefaction or cyclic mobility. When a satisfactory performance of structures can’t be guaranteed under seismic loading, methods of mitigation must be employed in order to reduce the potential of liquefaction. Among these methods, the execution of prefabricated vertical drains is an interesting, but challenging, solution, because drains can be used if they dissipate very quickly the excess of porepressure generated during the small duration of earthquakes. One of the main challenges is to evaluate the coefficient of permeability of the deposit which affects and brings uncertainties to the desirable distance between the drains installed. On this work, analysis of the performance of vertical drains to mitigate dynamic liquefaction are performed based in mathematical formulations and numerical models through the Finite Element Method.