Bared tailing sands could cause radiation hazard to the surrounding environmental and public during the operating of uranium tailings impoundments. Base on the CFD technology, the dust-controlling and radiation protection effect of different beach shapes(arc beach, prismatic beach and pyramid beach) were discussed to reduce or control the particle migration and environmental pollution for a ground-type uranium tailings impoundment. The numerical results show the dust-controlling effect of arc beach at the wind speed of 1.0 m·s-1 is better than...