| 包气带黄土环境研究与放射性废物处置 |
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| 引用本文： | 许兆义,赵英杰.包气带黄土环境研究与放射性废物处置[J].水文地质工程地质,1993,20(5):42-46. |
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| 作者姓名： | 许兆义 赵英杰 |
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| 作者单位： | 长春地质学院，中国辐射防护研究院，清华大学，中国地质大学 长春 130026，太原 030006，北京 100084，北京 100083 |
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| 摘 要： | 黄土中的粘粒含量较高、比表面积较大、吸附性较强、阳离子交换容量也较高,这些因素对迟滞放射性核素的迁移有利。而且黄土的非饱和渗透系数K(θ)远远低于它的饱水渗透系数K_(?)。使得放射性核素在黄土中的迁移很慢。因此,包气带黄土作为中、低放射性废物处置库的环境屏障是可行的。
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| 关 键 词： | 包气带 黄土环境 放射性废物 处理 |
Study of loessial environment in unsaturated zone and disposal of radioactive waste |
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| Xu Zhaoyi et al.Study of loessial environment in unsaturated zone and disposal of radioactive waste[J].Hydrogeology and Engineering Geology,1993,20(5):42-46. |
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| Authors: | Xu Zhaoyi |
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| Institution: | Xu Zhaoyi et al |
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| Abstract: | Loess has the characteristics of relatively high clay contents, larger specific surface area, relatively strong adsorptivity, and relatively high capacity of total cation exchange. These factors are beneficial to the retardation of radionuclide migration. Bcsides, the unsaturated hydraulic conductivity of loess is much less than its saturated hydraulic conductivity, so that the radionuctide migration is very slow in unsaturated loess. Therefore, it is feasibte for loess in unsaturated zone to serve as geological (environmental) barrier for a low-mediudm level radioactive waste disposal. |
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| Keywords: | unsaturated zone loessial environment radioactive waste waste deposition |
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