Advanced Search
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊
Volume 37 Issue 12
Turn off MathJax
Article Contents
Abstract
References
WAN Xu-sheng, LAI Yuan-ming, LIAO Meng-ke. Relationship between temperature and water content of sodium saline soils without phase transformation[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(12): 2175-2181. DOI: 10.11779/CJGE201512006
Citation: WAN Xu-sheng, LAI Yuan-ming, LIAO Meng-ke. Relationship between temperature and water content of sodium saline soils without phase transformation[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(12): 2175-2181. DOI: 10.11779/CJGE201512006
shu

Relationship between temperature and water content of sodium saline soils without phase transformation

  • 1. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Region Environmental and Engineering Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. School of Civil Engineering and Architecture, Southwest Petroleum University, Chengdu 610513, China

More Information
  • Received Date: October 27, 2014
  • Published Date: December 19, 2015
    Graphical Abstract
    • Abstract
  • The relationship between water content without phase transformation of sodium sulfate saline soils and temperature is established above the freezing temperature of soils through theoretical analysis. In order to find the mechanism of the initial precipitation temperature of salt crystals in sodium sulfate saline soils and solution and change of water content under different temperature conditions, saline soil samples and solutions are tested in laboratory. By analyzing the cooling curves of soil samples and NMR single strength under different temperatures, the influence of temperature on water content without phase transformation is obtained. The research results show that, the precipitation of sodium sulfate decahydrate usually lags under specific cooling rate. Besides, the initial precipitation temperature is lower than the temperature of saturated solution. And also, the initial precipitation temperature decreases as the salt content of soil decreases. Meanwhile, the initial salt crystals are easier to form in solution than in soils. In addition, the decrease of water content in saline soils is greater than that in solution, and the water content without phase change decreases as the temperature decreases. The unfrozen water content of sodium sulfate saline soils with high salt content decreases exponentially, and the water content no longer changes when the temperature of soils is up to -10℃. For the sodium sulfate saline soils with low salt content, the unfrozen water content also decreases exponentially, and under the same temperature, the unfrozen water content of soils increases as the salt content increases.
    • FullText(HTML)
    • References (14)
  • [1]
    汪 林, 甘 泓, 于福亮, 等. 西北地区盐渍土及其开发利用中存在问题的对策[J]. 水利学报, 2001(6): 90-95. (WANG Lin, GAN Hong, YU Fu-liang, et al. Salted soil and its development in Northwest China[J]. Journal of Hydraulic Engineering, 2001(6): 90-95. (in Chinese))
    [2]
    高江平, 吴家惠. 硫酸盐渍土盐胀特性的单因素影响规律研究[J]. 岩土工程学报, 1997, 19(1): 15-19. (GAO Jiang-ping, WU Jia-hui. Study on laws of the single factor effect upon heaving properties of the sulfated salty soil[J]. Chinese Journal of Geotechnical Engineering, 1997, 19(1): 15-19. (in Chinese))
    [3]
    黄兴法, 曾德超, 练国平. 土壤水热盐运动模型的建立与初步验证[J]. 农业工程学报, 1997, 13(3): 32-36. (HUANG Xing-fa, ZENG De-chao, LIAN Guo-ping. A numerical model for coupling movement of water heat and salt in soil under the conditions of frozen, unfrozen, saturated and unsaturated[J]. Chinese Society of Agriculture Engineeing, 1997, 13(3): 32-36. (in Chinese))
    [4]
    徐学祖, 王家澄, 张立新, 等. 土体的冻胀和盐胀机理[M]. 北京: 科学出版社, 1995. (XU Xue-zu, WANG Jia-cheng, ZHANG Li-xin, et al. Mechanisms of frost heave and soil expansion of soils[M]. Beijing: Science Press, 1995. (in Chinese))
    [5]
    XU X Z, OLIPHANT J L, TICE A R. Prediction of unfrozen water contents in frozen soils by a two-points or one-point method[C]// Proceedings of 4th Int Symp on Ground Freezing. 1985: 83-87.
    [6]
    KUJIALA K. Unfrozen water content of Finish soils measured by NMR[C]// Proc Int Symp on Frost in Geotechnical Engineering. Espoo, 1989: 301-310.
    [7]
    SHENG D, AXELSSON K, KNUTSSON S. Frost heave due to ice lens formation in freezing soils: 1 theory and verification[J]. Nordic Hydrolgy, 1995, 26: 125-146.
    [8]
    陈肖柏, 刘建坤, 刘鸿绪, 等. 土的冻结作用与地基[M]. 北京: 科学出版社, 2006. (CHEN Xiao-bai, LIU Jian-kun, LIU Hong-xu, et al. Frost action of soil and foundation engineering[M]. Beijing: Science Press, 2006. (in Chinese))
    [9]
    万旭升, 赖远明. 硫酸钠溶液和硫酸钠盐渍土的冻结温度及盐晶析出试验研究[J]. 岩土工程学报, 2013, 35(11): 2090-2096. (WAN Xu-sheng, LAI Yuan-ming. Experimental study on freezing temperature and salt crystal precipitation of sodium sulfate solution and sodium sulfate saline soil[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(11): 2090-2096. (in Chinese))
    [10]
    TICE A R, BURROUS C M, ANDERSON D M. Phase composition measurements on soils at very high water contents by the pulsed nuclear magnetic resonance technique[J]. Transportation Research Record, 1978, 675(3): 11-14.
    [11]
    EVERETT D H. The thermodynamics of frost damage to porous solids[J]. Transactions of the Faraday Society, 1961, 57: 1541-1551.
    [12]
    PRAUSNITZ J M, LICHTENTHALER N R, DE AZEVEDO E G. Molecular thermodynamics of fluid-phase equilibria[M]. 3rd ed. London: Prentice Hall Press, 1999.
    [13]
    STEIGER M. Crystal growth in porous materials: Ⅰ The crystallization pressure of large crystals[J]. Journal of Crystal Growth, 2005, 282: 455-469.
    [14]
    STEIGER M, KIEKBUSCH J, NICOLAI A. An improved model incorporating Pitzer’s equations for calculations of thermodynamic properties of pore solutions implemented into an effect program code[J]. Construction and Building Materials, 2008, 22: 1841-1850.
    • Related Articles
  • Supplements (0)

Catalog

    Get Citation
    PDF
    XML
    Article views (355) PDF downloads (230) Cited by()
    Related
    Copyright © 2010 Editorial By Chinese Journal of Geotechnical Engineering 苏ICP备05007122号-11公安联网备案号：32010602011255
    Editorial Office address：34 Hujuguan,Nanjing 210024,ChinaPostal Code：210024Tel：025-85829534，85829556E-mail: ge@nhri.cn

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return