The numerical model of a certain tailings dam in Hunan was simulated and its stability was analyzed by FLAC, and the displacement contours, stress contours and shear strain contours of the tailings dam were drawn. These simulation results have a long-term important practical significance and provide a reference for the comprehensive stability a- nalysis of the railings dam. The analysis result shows that the safety factor of the tailings dam is about 1.25 and it is safe in normal condition. However,the dam break may happen when storm comes in this area. So, according to the analysis result, th...