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Study on the influence of water saturation on radon exhalation rates of rocks
Pengfei Li1, Qiang Sun2, Lin Cong3
1College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, Shaanxi 710054, China.
Abstract:
The radon exhalation characteristics of rocks will change significantly during water saturation treatment, and radon, as an important tracer, is of great significance in predicting rock activities. In this paper, the radon exhalation characteristics of rocks after saturated with different water contents were studied by centrifugal test, radon measurement test and other indoor tests. The results show that the radon exhalation rate of rocks shows a rising and then decreasing trend with the increase of rock water saturation. The radon precipitation rate peaked at 0.7 Sw ∼ 0.8 Sw, and the high water saturation had an obvious inhibiting effect on the radon exhalation rate of rocks. The research results are of great significance in predicting the rock-water-based geological processes.
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