| Article | |
|---|---|
| Article name | RADIOECOLOGICAL SITUATION IN UNDERGROUND MINING WORKS OF URANIUM MINES AND WAYS OF ITS IMPROVEMENT |
| Authors | Voronov E.. , Avdeev P.. , |
| Bibliographic description | |
| Category | Earth science |
| DOI | 553.495.622.416 |
| DOI | 10.21209/2227-9245-2019-25-7-27-33 |
| Article type | scientific |
| Annotation | One of the urgent problems in the extraction of natural uranium by the underground method is to ensure the radiation safety of underground personnel by reducing alpha and gamma radiation in the face. The article analyzes the negative effects of radioactive gas of radon and its decay products on the body of a mining face. The features of the formation of the radioecological situation in the zone of underground sewage treatment are highlighted. An assessment is given of a downstream layered development system by the influence of radiation-hazardous factors on personnel. It has been established that this development system is the safest in comparison with other systems having an open treatment space. The main factors providing the advantage of this development system are: low radon emission figures due to the small ore surface area; a relatively small volume of mined ore; low air permeability of the ore mass during blasting; relatively small ventilated volume of the block; significantly reduced external radiation dose due to the presence of a consolidating stowing in the roof. The article presents a ventilation scheme for mining blocks using the most radiation-safe layered development system with a downward notch and consolidating stowing. A technique is proposed for calculating the air demand of treatment units based on the use of actual radon emission factors for the uranium deposits of the Streltsovskoy ore field, obtained on the basis of airborne-radon surveys. Deposits (areas) of the Streltsovskoy ore field with the highest production rate of radon emission in the mine atmosphere have been identified. For practical use, graphs are given to determine the optimal air demand of mining blocks for specific exploited uranium deposits. |
| Key words | Key words: uranium deposits; Streltsovskoe ore field; layered development system; consolidating stowing; treatment unit; radon; emanations; radiation factor; alpha radiation; air demand; calculation procedure; block ventilation scheme |
| Article information | Voronov E., Avdeev P., Gerasimov V. Radioecological situation in underground mining works of uranium mines and ways of its improvement // Transbaikal State University Journal, 2019, vol. 25, no.7, pp. 27-33 |
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| Full article | RADIOECOLOGICAL SITUATION IN UNDERGROUND MINING WORKS OF URANIUM MINES AND WAYS OF ITS IMPROVEMENT |
