One-dimensional creep tests and model studies on saturated saline soil

doi:10.11779/CJGE202001016

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	One-dimensional creep tests and model studies on saturated saline soil
	Zhou, Feng-Xi 1,2; Wang, Li-Ye 1; Lai, Yuan-Ming 2
刊名	Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering
	2020
卷号	42 期号:1 页码:142-149
关键词	Consolidation Creep Creep testing Geotechnical engineering Osmosis Saline water Sodium chloride Sodium sulfate Soil mechanics Sulfur compounds Chemical interactions Constant load creep tests Deformation Characteristics Osmotic suction Pitzer ion-interaction model Saline soil Sodium chloride solution Theoretical modeling
ISSN号	10004548
DOI	10.11779/CJGE202001016
英文摘要	The physical and chemical interaction between soil particles and pore salt solutions in saturated saline soils has a strong influence on the mechanical behavior of soils, which makes the saline soils exhibit different deformation characteristics. In order to accurately describe this interaction of saturated saline soil, the experimental studies on the remolded specimens saturated with distilled water, sodium sulfate solution and sodium chloride solution are carried out by the conventional oedometer tests and constant load creep tests. The test results show that there is a significant difference in the consolidation creep between saline soils and non-saline soils. This phenomenon is more obvious with the increase of salt content. The consolidation creep effect of sulphate soils and chloride soils with the same salt content is different. Secondly, based on the Yin-Graham one-dimensional creep equation, a one-dimensional creep theoretical model for saturated saline soils is established by using the Pitzer ion interaction model and the van't Hoff osmotic suction equation and introducing the effective osmotic stress. Finally, the improved theoretical model and experimental data are compared and analyzed. The results show that the proposed theoretical model can describe the chemical-mechanical coupling in saturated saline soils and effectively predict the one-dimensional creep behavior. © 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/150986]
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. One-dimensional creep tests and model studies on saturated saline soil[J]. Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering,2020,42(1):142-149.
APA	Zhou, Feng-Xi,Wang, Li-Ye,&Lai, Yuan-Ming.(2020).One-dimensional creep tests and model studies on saturated saline soil.Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering,42(1),142-149.
MLA	Zhou, Feng-Xi,et al."One-dimensional creep tests and model studies on saturated saline soil".Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering 42.1(2020):142-149.