Water and Salt Migration with Phase Change in Saline Soil during Freezing and Thawing Processes

Wu Daoyong; Zhou Xiangyang; Jiang Xingyuan

首页> 外文期刊>Ground water >Water and Salt Migration with Phase Change in Saline Soil during Freezing and Thawing Processes

【24h】

Water and Salt Migration with Phase Change in Saline Soil during Freezing and Thawing Processes

机译：冻融过程中盐渍土中水和盐的迁移及其相变

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Water and salt transfer coupled with phase change may cause serious damage to engineering structures in saline soil regions. In this study, the migration of water and salt in silty clay collected from the Qinghai-Tibet Plateau is explored experimentally and numerically during freezing and thawing processes. The results revealed that there are significant differences in the variations of liquid water content and solution concentration for different initial salt contents, due to salt crystallization and dissolution. The temperature-induced water migration is determined by the soil properties, which can be well explained by the thermodynamics of mass transfer. The amount of salt migrated upward during cooling is slightly larger than that transported downward in the warming period, implying that salt may be accumulated in the surface soil after a large number of circulations and finally result in soil salinization.

机译：水分和盐分的转移以及相变可能会严重破坏盐碱土地区的工程结构。在这项研究中，水和盐在青藏高原粉质黏土中的迁移在冻融过程中进行了实验和数值研究。结果表明，由于盐的结晶和溶解，对于不同的初始盐含量，液体水含量和溶液浓度的变化存在显着差异。温度引起的水迁移取决于土壤的性质，这可以通过传质的热力学很好地解释。在冷却过程中向上迁移的盐量略大于在暖化时期向下迁移的盐量，这意味着盐可能会在大量循环之后积聚在表层土壤中，并最终导致土壤盐碱化。

著录项

来源
《Ground water》 |2018年第5期|742-752|共11页
作者
Wu Daoyong; Zhou Xiangyang; Jiang Xingyuan;
展开▼
作者单位

Guizhou Univ, Key Lab Karst Environm & Geohazard, Minist Land & Resources, Huaxi New Campus, Guiyang 550025, Guizhou, Peoples R China;

Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550025, Guizhou, Peoples R China;

Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550025, Guizhou, Peoples R China;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词

相似文献

外文文献
中文文献
专利

1. Effect of freezing and thawing processes on some physical properties of saline-sodic soils mixed with sewage sludge or fly ash [J] . Sahin Ustun, Angin Ilker, Kiziloglu Fatih M. Soil & Tillage Research . 2008,第2期

机译：冻融过程对含污水污泥或粉煤灰的盐碱土某些物理性质的影响
2. Estimating the freezing-thawing hysteresis of chloride saline soils based on the phase transition theory [J] . Wang Chong, Lai Yuanming, Yu Fan, Applied thermal engineering: Design, processes, equipment, economics . 2018,第期

机译：基于相变理论，估算氯化物盐渍土的冰冻解冻滞后
3. Crystallization deformation of a saline soil during freezing and thawing processes [J] . Lai Yuanming, Wu Daoyong, Zhang Mingyi Applied thermal engineering: Design, processes, equipment, economics . 2017,第期

机译：冷冻和解冻过程中盐土的结晶变形
4. BP Network Model Research on Water and Salt Transfer Forecast in Seasonal Freezing and Thawing Soils [C] . Effective Utilization of Agricultural Soil Water Resources and Protection of Environment . 2007

机译：季节性冷冻与解冻土壤水和盐转移预测的BP网络模型研究
5. Simulation and field validation of heat and water flow during soil freezing and thawing. [D] . Pikul, Joseph Lawrence, Jr. 1987

机译：土壤冻结和解冻过程中热流和水流的模拟和现场验证。
6. A MAPK gene from Dead Sea fungus confers stress tolerance to lithium salt and freezing–thawing: Prospects for saline agriculture [O] . Yan Jin, Song Weining, Eviatar Nevo 2005

机译：死海真菌的MAPK基因赋予了对锂盐和冻融的胁迫耐受性：咸水农业的前景
7. The effects of soil freeze–thaw processes on water and salt migrations in the western Songnen Plain, China [O] . Yan Qin, Yufeng Bai, Guoshuang Chen, 2021

机译：土壤冻融工艺对中国西部松嫩平原水和盐迁移的影响

Water and Salt Migration with Phase Change in Saline Soil during Freezing and Thawing Processes

摘要

著录项

相似文献

相关主题

期刊订阅