Characteristics of radon transport and optimization of ventilation parameters in large-scale underground cavern
文献类型：期刊论文
| 作者 | Li, Lingyu1,2; Zhang, Chuanqing1,2; Yang, Fanjie1,2; Fang, Zhi1,2 |
| 刊名 | JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
 |
| 出版日期 | 2025 |
| 卷号 | 281页码:13 |
| 关键词 | Large-scale underground cavern Radon transport Construction ventilation CFD numerical simulation |
| ISSN号 | 0265-931X |
| DOI | 10.1016/j.jenvrad.2024.107577 |
| 英文摘要 | Radon penetrates into the underground caverns through the pores/fissures of the surrounding rock, resulting in high radon concentration area and endangering the health of construction personnel. The on-site monitoring of radon concentration in the underground powerhouse of Tuoba Hydropower Station is conducted in order to study the radon concentration level. The radon transport during the construction period of underground powerhouse under forced ventilation is established by Computational Fluid Dynamics (CFD) numerical simulation method. Furthermore, the distribution characteristics and long-term evolution law of radon concentration in underground powerhouse are revealed, and reasonable ventilation optimization measures are put forward and the results show that: (1) Blasting promotes the increase of radon concentration, while forced ventilation accelerates radon transport. (2) The airflow field along the axis is divided into a vortex distribution zone, a vortex influence zone and stable regions. (3) The radon transport includes both migration and diffusion processes based on forced ventilation. (4) The radon concentration decreases with the increase of height, while exhibits low concentration in the middle and high concentration on both sides at the same height. (5) Compared with forced ventilation, the combined ventilation can improve the ventilation efficiency and shorten the radon transport time. The research results can provide a scientific basis for the safety analysis and evaluation of deep engineering environment. |
| 资助项目 | Key Project of the Yalong River Joint Fund of the National Natural Science Foundation of China[U1865203] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001372365500001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43400]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhang, Chuanqing |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Lingyu,Zhang, Chuanqing,Yang, Fanjie,et al. Characteristics of radon transport and optimization of ventilation parameters in large-scale underground cavern[J]. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY,2025,281:13. |
| APA | Li, Lingyu,Zhang, Chuanqing,Yang, Fanjie,&Fang, Zhi.(2025).Characteristics of radon transport and optimization of ventilation parameters in large-scale underground cavern.JOURNAL OF ENVIRONMENTAL RADIOACTIVITY,281,13. |
| MLA | Li, Lingyu,et al."Characteristics of radon transport and optimization of ventilation parameters in large-scale underground cavern".JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 281(2025):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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