Mining, Dam, Tailings, Rupture, Stain.

Mining activity is essential for the human’s routine, being able to transform raw materials into necessary day-to-day items, such as equipment, machines, tools, among many other items. This transformation is named of beneficiation process, which are made extraction procedures and treatment of the mineral, resulting in tailings, mineral residue that has no economic value. This tailing is disposed and stored in containment structures, called dams, reservoirs, in general, and, for the construction of these structures, there are laws and norms that recommend and define design criteria, adapting them to safety standards. The non-attendance of this safety standards, as well as lack of operation and maintenance control, result in failures and, in many cases, ruptures, causing environmental, social and economic impacts. In this work, a study of the rupture of a reservoir is presented, based on available input data. The objective of this study is make a comparative analysis between rupture simulation softwares, HEC-RAS 2D and RiverFlow2D, which presented similar results, concluding that both have a good representation on simulation of hypothetical dam failure.