Hydrogeology Tests Performed in Shazaoyuan Candidate Site for China's HLW Geodisposal

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Zhang, Ming^1 ; Ji, Ruili^1 ; Zhou, Zhichao^1 ; Zhao, Jingbo^1 ; Gou, Jianxiong^1 ; Chen, Hengrui^1

Beijing Research Institute of Uranium Geology, China National Nuclear Corporation, China^1

关键词: Geological disposals;    High level radioactive waste disposal;    Hydrogeology Test;    Injection test;    Low permeability;    Potential sites;    Quantitative assessments;    Transient curves;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/2/022102/pdf
DOI  :  10.1088/1755-1315/170/2/022102

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Rock mass hydraulic conductivity is one of the most important indexes for candidate site quantitative assessment of high-level radioactive waste disposal. 178 hydrogeology tests, mainly constant head injection test and pulse test, were performed in the 4 boreholes drilled in Shazaoyuan candidate site. Reliable hydraulic conductivity was obtained with transient curve matching methods. The result shows that the hydraulic conductivity was high heterogeneous; the maximum hydraulic conductivity was 9.30×10-8m/s and 93% of the sections were lower than 10-8m/s. Shazaoyuan candidate site can be inferred as one of the most potential sites for the geological disposal of China's HLW in the view of low permeability.