Experimental study on the freezing temperatures of saline silty soils
文献类型：期刊论文
| 作者 | Wan, Xusheng1; Lai, Yuanming1,2; Wang, Chong1,3 |
| 刊名 | Permafrost and periglacial processes
 |
| 出版日期 | 2015-04-01 |
| 卷号 | 26期号:2页码:175-187 |
| 关键词 | Sulfate saline soil Freezing temperature Water activity Surface free energy Qinghai-tibet plateau |
| ISSN号 | 1045-6740 |
| DOI | 10.1002/ppp.1837 |
| 通讯作者 | Lai, yuanming(ymlai@lzb.ac.cn) |
| 英文摘要 | The freezing temperature of soil is an important index to judge whether it is in a frozen state or not, and plays a key role in distinguishing salt expansion from frost heave. freezing experiments on sulfate saline soil and its ion solution indicate that the initial freezing temperature of the soil is mainly determined by the properties of the ion solution. the effects of saline soil types and saline solution concentrations on the freezing temperature are also investigated. an equation to calculate the freezing temperature of the sulfate salt solution is deduced from the pitzer ion model and its validity is verified by the experimental results. under the assumption that the soil freezing temperature is determined by the freezing temperature of the corresponding ion solution and the energy of the ice-liquid interface, a precise relation between the soil freezing temperature and the radius of the ice-liquid interface is obtained and a general equation to determine the freezing temperature of the silty clay of the qinghai-tibet plateau is proposed. copyright (c) 2015 john wiley & sons, ltd. |
| 收录类别 | SCI |
| WOS关键词 | FROST HEAVE ; CRYSTALLIZATION ; THERMODYNAMICS ; MODEL |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000355864700006 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555016 |
| 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, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Inst, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Jiaotong Univ, Sch Civil Engn, Lanzhou, Gansu, Peoples R China 3.Lanzhou Univ, Sch Civil Engn & Mech, Lanzhou, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wan, Xusheng,Lai, Yuanming,Wang, Chong. Experimental study on the freezing temperatures of saline silty soils[J]. Permafrost and periglacial processes,2015,26(2):175-187. |
| APA | Wan, Xusheng,Lai, Yuanming,&Wang, Chong.(2015).Experimental study on the freezing temperatures of saline silty soils.Permafrost and periglacial processes,26(2),175-187. |
| MLA | Wan, Xusheng,et al."Experimental study on the freezing temperatures of saline silty soils".Permafrost and periglacial processes 26.2(2015):175-187. |
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来源：寒区旱区环境与工程研究所
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