干旱区生态环境知识资源中心(Arid): Theoretical and Numerical Analyses on Hydro-Thermal-Salt-Mechanical Interaction of Unsaturated Salinized Soil Subjected to Typical Unidirectional Freezing Process

Arid

DOI	10.1061/(ASCE)GM.1943-5622.0002036
	Theoretical and Numerical Analyses on Hydro-Thermal-Salt-Mechanical Interaction of Unsaturated Salinized Soil Subjected to Typical Unidirectional Freezing Process
	Zhang, Xudong; Zhai, Encheng; Wu, Yajun; Sun, De'an; Lu, Yitian
通讯作者	Wu, YJ (corresponding author), Shanghai Univ, Dept Civil Engn, 99 Shangda Rd, Shanghai 200444, Peoples R China.
来源期刊	INTERNATIONAL JOURNAL OF GEOMECHANICS
ISSN	1532-3641
EISSN	1943-5622
出版年	2021
卷号	21 期号:7
英文摘要	The freezing process of salinized soil is a complex, dynamic, and interactive hydro-thermal-salt-mechanical (HTSM) coupled physical phenomenon. In many recent studies, soil was assumed to be saturated, and the theoretical models established were based on the framework of saturated soil, in which the influence of the vapor phase in freezing soil was neglected. In this paper, by considering the effect of vapor flow on heat movement and the relation between saturation and void ratio, an improved mathematical model will be established based on previous research. This improved hydro-thermal-salt-mechanical (IHTSM) model simulates the dynamic process of water migration, heat transfer, vapor flow, solute transport, and deformation. The numerical simulation implemented by the IHTSM model under the typical conditions of unidirectional freezing will be compared with previous research to verify the model's validity, and the various characteristics of the curves and their physical meaning will be analyzed by comparing them with the previous research. The dynamics of temperature, mass moisture content, displacement, salt content, volumetric vapor content and saturation degree in soil column will be discussed for the salinized soil during the freezing process. The results indicated that this improved model could provide a reference for the destruction process analysis of the harsh geological environment in cold, arid, and saline areas.
英文关键词	Unsaturated salinized freezing soil Moisture transfer Heat and solute transfer Frost heave Improved hydro-thermal-salt-mechanical coupled model
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000657451200004
WOS关键词	HYDRAULIC CONDUCTIVITY ; FROST HEAVE ; PIPELINE INTERACTION ; SOLUTE TRANSPORT ; WATER ; MODEL ; EVAPORATION ; CONSOLIDATION ; ACCUMULATION ; STRESS
WOS类目	Engineering, Geological
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368669
作者单位	[Zhang, Xudong; Zhai, Encheng; Wu, Yajun; Sun, De'an; Lu, Yitian] Shanghai Univ, Dept Civil Engn, 99 Shangda Rd, Shanghai 200444, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xudong,Zhai, Encheng,Wu, Yajun,et al. Theoretical and Numerical Analyses on Hydro-Thermal-Salt-Mechanical Interaction of Unsaturated Salinized Soil Subjected to Typical Unidirectional Freezing Process[J],2021,21(7).
APA	Zhang, Xudong,Zhai, Encheng,Wu, Yajun,Sun, De'an,&Lu, Yitian.(2021).Theoretical and Numerical Analyses on Hydro-Thermal-Salt-Mechanical Interaction of Unsaturated Salinized Soil Subjected to Typical Unidirectional Freezing Process.INTERNATIONAL JOURNAL OF GEOMECHANICS,21(7).
MLA	Zhang, Xudong,et al."Theoretical and Numerical Analyses on Hydro-Thermal-Salt-Mechanical Interaction of Unsaturated Salinized Soil Subjected to Typical Unidirectional Freezing Process".INTERNATIONAL JOURNAL OF GEOMECHANICS 21.7(2021).