Regular scientific testing and evaluation of the quality and safety of uranium decommissioning and treatment engineering facilities is an important activity to make up for engineering defects and continuously improve treatment measures, which will ensure the long-term effective isolation of uranium mine radioactive waste residue from the ecological environment. The study used on-site observation, in-situ strength detection, concealed engineering detection and other methods to complete the inspection of the structure of the decommissioning and treatment engineering facilities of some uranium mines in China that had been completed for 20~30 years, and established the quality assessment method of decommissioning treatment facilities through the investigation and analysis of the causes of damage. The results of structural inspection and evaluation show that the quality of decommissioning treatment facilities is good, the resistance to the influence of natural stress is guaranteed, and it is necessary to carry out continuous and active monitoring work. It also puts forward suggestions for future decommissioning design, construction and management.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |