Abstract:By analyzing the difference between the continued-built tailings reservoir and the newly-built tailings reservoir, it was expounded that the transition from the old tailings reservoir to the continued-built tailings reservoir should be paid attention to in the construction of the continued-built tailings reservoir, including the construction planning of the continued-built tailings reservoir, the transition scheme of the tailings disposal scale, the transition scheme of the water consumption in the plant, the utilization of the existing tailings facilities and the operation experience of the tailings facilities. Taking the continued-built tailings reservoir project of a copper mine as an example, it was showed how to solve the above problems in practical work according to the actual situation.