RESEARCH OF RADON TRANSPORTATION MODEL TO INVESTIGATE BURIED FAULT
How to get the position, direction and width of buried fault effectively is still very difficult when finding buried faults by measuring 222Rn radioactivity. In this paper we established a technique to carry out buried fault investigation. It was based on Ficks fist law, Darcys law and theory of clusters to analyze radon transportation and simulate 222Rn transportation in ideal conditions. The feasibility indicates that measuring or investigating the concentration of radon to find abnormal region can help people find buried faults. 218Po and 214Po, daughter products of 222Rn, are generally considered to be proportional to initial concentration of 222Rn. 218Po and 214Po have short half-life of 3.05 min and 164us respectively which is very suitable for actual measure work. So in order to accumulate alpha particles effectively, soil gas sampling period is set about twice half-life of 218Po. The established model is applied to analyze two buried fault areas in Southwest China and the results are really much better.
Wang Lei Tuo Xianguo Liu Chunlai
College of Applied Nuclear Technique in Geosciences Key Laboratory of Sichuan Province, Chengdu Univ State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu, Sichuan, China College of Applied Nuclear Technique in Geosciences Key Laboratory of Sichuan Province Chengdu Unive
国际会议
18th International Conference on Nuclear Engineering(第18届国际核能工程大会 ICONE 18)
西安
英文
1-6
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）