Abstract: In view of the practical application of the original design disposal process of a near surface disposal site, there are related problems such as the reduction of volume utilization rate of disposal unit. This paper optimizes the original design scheme and puts forward a new design. The effects of the optimized design were analyzed from three aspects: construction cost, time, radiation dose and similar disposal site. The comparison results show that the optimized stacking plan is more suitable for the actual disposal requirements than the original design. The volume utilization rate of the disposal unit has been significantly improved. And the successful practice of the individual optimized stacking plan also achieved the expected design effect.

Key words: disposal site, scheme, volume utilization rate, optimization