中文摘要：

本文采用自行设计的氡析出实验装置,开展了不同功率超声作用下的饱和水介质氡析出实验,研究铀矿石破裂前超声声发射与岩石氡异常规律。实验结果显示：超声作用对氡析出有明显影响,且随着超声功率的增加而增大,呈线性趋势。但随着实验时间的推移,氡析出逐渐恢复实验初始水平,超声作用结束30 min后,饱和水试块的氡析出能力相对初始时并没有显著的变化。实验结论为铀矿开采过程中氡的防护提供了理论依据。

英文摘要：

With the self- designed radon exhalation experimental device, this paper carries out the saturated water radon exhalation experiment under different ultrasonic power to discover the anomaly regularity between the ultra sound emission and radon in rock before the uranium ore rupture. Test results show that radon exhalation is obviously influenced hy ultrason- ic effect and increases linearly with the increase of ultrasonic power. However, as time goes on, radon exhalation will be gradually back to the initial level before the experiment. After ultrasonic effect for 30 minutes, there is no prominent change in the ability of the radon exhalation of saturated water block relative to the initial. Experimental conclusion provides a theo- retical basis for radon protection in the process of uranium mining.