Influence of Blasted Uranium Ore Heap on Radon Concentration in Confined Workspaces of Shrinkage Mining Stope

International Conference on Sustainable Energy Engineering

能源学;经济学

Ye, Y.J.^1,2 ; Liang, T.^2 ; Ding, D.X.^1 ; Lei, B.^2 ; Su, H.^2 ; Zhang, Y.F.^2

Key Discipline Lab. for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang

421001, China^1

School of Environmental Protection and Safety Engineering, University of South China, Hengyang, HUNAN

421001, China^2

关键词: Calculation models;    Mining stopes;    Radiation Exposure;    Radon concentrations;    Uranium ore;    Ventilation airs;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/73/1/012030/pdf
DOI  :  10.1088/1755-1315/73/1/012030

来源: IOP

【 摘 要 】

A calculation model for radon concentration in shrinkage mining stopes under various ventilation conditions was established in this study. The model accounts for the influence of permeability and area of the blasted ore heap, ventilation air quantity, and airflow direction on radon concentration in a confined workspace; these factors work together to allow the engineer to optimize the ventilation design. The feasibility and effectiveness of the model was verified by applying it to mines with elevated radon radiation exposure. The model was found to accurately changes in radon concentration according to the array of influence factors in underground uranium mines.