Review and research on osmotic suction of saturated saline soils

doi:10.11779/CJGE202007003

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Review and research on osmotic suction of saturated saline soils
	Zhou, Feng-Xi 1,2; Wang, Li-Ye 1; Lai, Yuan-Ming 2
刊名	Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering
	2020-07-01
卷号	42 期号:7 页码:1199-1210
关键词	Chlorine Geotechnical engineering Osmosis Sodium chloride Sodium sulfate Sulfur compounds Concentration values Electrical conductivity Intersection points Sulphate saline soil Temperature conditions Theoretical aspects Traditional models Van't Hoff equation
ISSN号	10004548
DOI	10.11779/CJGE202007003
英文摘要	In order to accurately calculate the osmotic suction in saturated saline soils under different salt contents, salt types and temperature conditions, firstly, a brief review is made of the research results of osmotic suction from the test and theoretical aspects. Secondly, through the electrical conductivity tests on sodium chloride and sodium sulfate solution under different temperature conditions, the relationship between the soil osmotic suction and the concentration after saturation of the two solutions is discussed. Finally, based on the fractal theory and solute ionization degree, the EC model and van't Hoff equation are improved, respectively, and the improved model is analyzed numerically. The test results show that the osmotic suction of the soil after sodium chloride saturation has an increase of power function with the concentration, while the osmotic suction of the soil after sodium sulphate exponentially increases with concentration. Therefore, the osmotic suction of sulphate saline soil is higher than that of chlorine saline soil at first, while that of chlorine saline soil is higher than that of sulphate saline soil after a certain concentration, and the concentration value mA of intersection point A increases linearly with the increase of temperature. The numerical analysis results show that the improved model can calculate the osmotic suction under complex conditions and is superior to the traditional models. © 2020, Editorial Office of Chinese Journal of Geotechnical Engineering. All right reserved.
语种	中文
出版者	Chinese Society of Civil Engineering
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115372]
专题	土木工程学院
作者单位	1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-environment and Resources, Chinese Academy of Sciences, Lanzhou; 730000, China
推荐引用方式 GB/T 7714	Zhou, Feng-Xi,Wang, Li-Ye,Lai, Yuan-Ming. Review and research on osmotic suction of saturated saline soils[J]. Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering,2020,42(7):1199-1210.
APA	Zhou, Feng-Xi,Wang, Li-Ye,&Lai, Yuan-Ming.(2020).Review and research on osmotic suction of saturated saline soils.Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering,42(7),1199-1210.
MLA	Zhou, Feng-Xi,et al."Review and research on osmotic suction of saturated saline soils".Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering 42.7(2020):1199-1210.