Abstract A method of detecting hidden fire sources in the goafs of deep mines is proposed, based on the analysis of the characteristics of radon measurements by combining, theoretical research, and experiments. Taking loose coal as the research object, the relationship between radon exhalation and coal temperature, the migration of radon, and its applicable conditions were studied with respect to temperature and location of a fire source point, based on programmed-temperature and spontaneous-combustion test beds. The results showed that radon exhalation first increased with coal temperature and then decreased after reaching the ignition temperature. During spontaneous combustion of loose coal, when 5

中文翻译：

---

基于氡测量的深部采空区隐蔽火源检测方法及其实验验证

摘要 在分析氡测量特征的基础上，结合理论研究和实验，提出了一种探测深部采空区隐蔽火源的方法。以松散煤为研究对象，基于程序升温和自燃试验，从火源点的温度和位置，研究氡析出与煤温、氡迁移的关系及其适用条件。床。结果表明，氡呼出量随煤温升高先增加，达到着火温度后降低。在松散煤自燃过程中，当 5