Study on the freezing temperature of saline soil
文献类型：期刊论文
| 作者 | Xiao, Zean1,2; Lai, Yuanming1,3; Zhang, Mingyi1 |
| 刊名 | ACTA GEOTECHNICA
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 13期号:1页码:195-205 |
| 关键词 | Freezing temperature Pore size Salt content Water content |
| ISSN号 | 1861-1125 |
| DOI | 10.1007/s11440-017-0537-1 |
| 通讯作者 | Lai, Yuanming(ymlai@lzb.ac.cn) |
| 英文摘要 | Freezing temperature is an important parameter in studying the freezing mechanism of saline soil. An equation for calculating the freezing temperature is proposed based on the phase transition theory in porous medium, including two main influencing factors, the water activity and pore size. In this equation, the effect of the water activity on the freezing temperature of soil is calculated by Pitzer model, while the impact of pore size is replaced by water content. Through comparing the calculated results with the published experimental data, the equation is proved to be competent in predicting the freezing temperature for the saline soil with sodium chloride or calcium chloride. For the saline soil with sodium carbonate, the effect of salt hydrate crystallization should be taken into consideration. With respect to the saline soil with sodium sulfate, it is difficult to determine the freezing temperature, since there is uncertainty of the resultant when freezing (that is, heptahydrate or decahydrate). In addition, the effects of pore size and multi-component solutes on freezing temperature are also discussed. The study would be helpful for revealing the freezing mechanism and also providing a useful theoretical method for engineering design of saline soil in cold regions. |
| 收录类别 | SCI |
| WOS关键词 | AQUEOUS-ELECTROLYTE SOLUTIONS ; ACTIVITY-COEFFICIENTS ; 2-IONIC-PARAMETER APPROACH ; ION ACTIVITY ; CRYSTALLIZATION |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Geological |
| 语种 | 英语 |
| WOS记录号 | WOS:000424028000013 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558076 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Lai, Yuanming |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Lanzhou Jiaotong Univ, Sch Civil Engn, Lanzhou 730070, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Zean,Lai, Yuanming,Zhang, Mingyi. Study on the freezing temperature of saline soil[J]. ACTA GEOTECHNICA,2018,13(1):195-205. |
| APA | Xiao, Zean,Lai, Yuanming,&Zhang, Mingyi.(2018).Study on the freezing temperature of saline soil.ACTA GEOTECHNICA,13(1),195-205. |
| MLA | Xiao, Zean,et al."Study on the freezing temperature of saline soil".ACTA GEOTECHNICA 13.1(2018):195-205. |
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来源：寒区旱区环境与工程研究所
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