期刊论文

Feng, Shengyang;Liu, Yong

英文

Computers and Geotechnics

0266-352X

2020

128

103810

10.1016/j.compgeo.2020.103810

This work was supported by the National Natural Science Foundation of China (grant numbers 11705083 and 11575080 ), China Postdoctoral Science Foundation (grant number 2018 M632975 ), National Natural Science Foundation of Hunan Province (grant number 2019JJ50488 ) and the 2019 Annual Joint Fund Project of Hunan Province Engineering Research Center of Radioactive Control Technology in Uranium Mining and Metallurgy & Hunan Province Engineering Technology Research Center of Uranium Tailings Treatment Technology, University of South China (grant number 2019YKZX1009 ). We thank Younes Adakai Afghanis for kindly sharing the open source software ADFNE.

本校为第一且通讯机构

A novel model combined with fractal theory and the discrete fracture network (DFN) model is proposed to simulate radon migration in fractured media. In the novel model, the fracture center and length distribution are determined by a first-order model, and the fracture orientations are modeled with the von Mises-Fisher distribution. The model is further developed into a computer software that can calculate the radon diffusion coefficient and exhalation rate of fractured media. An outcrop map is used to validate the ability of the model to descri...