Study on radon gas transport law of overlying rock layer under different geological conditions of coal spontaneous combustion

被引：0
作者：
Dong, Kaili [1 ]
Zhou, Bin [2 ]
Zhang, Yulong [2 ]
Lu, Zhifan [1 ]
Liu, Xiaoyuan [1 ]
Wang, Junfeng [1 ]
机构：
[1] Taiyuan Univ Technol, Coll Min Technol, Taiyuan, Peoples R China
[2] Taiyuan Univ Technol, Sch Safety & Emergency Management Engn, Taiyuan, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2024年 / 333卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Coal spontaneous combustion; Fire source location; Radon gas transport; Geological conditions; Surface detection; SURFACE; MINE; FIRE; ANOMALIES;
D O I：
10.1007/s10967-024-09746-6
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The alpha cup method was employed to delineate spontaneous combustion areas in three coal mines. Following this, cores were drilled to measure radon concentration at various depths using the RAD7 radon detector. Subsequently, the results were then combined with the equation of radon concentration distribution with depth in a semi-infinite medium, demonstrating the equation's suitability for shallow coal seams. Thereafter, numerical models of radon migration were constructed. The study found that the upward migration of radon is weakened and adsorbed by rock formations, and faults, altering the migration path of radon.
引用
收藏
页码：6379 / 6389
页数：11
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