Steady-state analysis of the heat-moisture-salt coupling for unsaturated soil

doi:10.16285/j.rsm.2018.0306

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Steady-state analysis of the heat-moisture-salt coupling for unsaturated soil
	Zhou, Feng-Xi 1,2; Gao, Guo-Yao 1
刊名	Yantu Lixue/Rock and Soil Mechanics
	2019-06-10
卷号	40 期号:6 页码:2050-2058
关键词	Boundary conditions Moisture Nonlinear equations Pore pressure Porous materials Soil conservation Soils Coupled nonlinear differential equations Distribution of temperature Energy conservation equations Mass conservation equations One dimensional steady state Shooting methods Steady-state condition Unsaturated soil
ISSN号	10007598
DOI	10.16285/j.rsm.2018.0306
英文摘要	The multi-field coupled heat-moisture-salt behavior of unsaturated soils under steady state is investigated using porous media theory. It considers that the pores are filled with liquid water, dissolved salts, water vapor, and dry gas. The mass conservation equations of moisture, gas, and salinity in unsaturated soils and the energy conservation equations are presented. Considering one-dimensional steady-state problems, the state equations are obtained by using the temperature, pore pressure, pore water pressure and salt solution concentration and their first-order derivatives as the state variables. Under given boundary conditions, the coupled nonlinear differential equations for the varying coefficients are solved by shooting method. The validity of the model is verified by comparing with the existing experimental results. Based on numerical examples, the influence of moisture content, temperature boundary and porosity on the distribution of temperature field, water field and salt field in unsaturated soils was discussed in detail. © 2019, Science Press. All right reserved.
WOS研究方向	Engineering
语种	中文
出版者	Academia Sinica
WOS记录号	WOS:000487852600003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113952]
专题	土木工程学院
作者单位	1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China; 2.Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China
推荐引用方式 GB/T 7714	Zhou, Feng-Xi,Gao, Guo-Yao. Steady-state analysis of the heat-moisture-salt coupling for unsaturated soil[J]. Yantu Lixue/Rock and Soil Mechanics,2019,40(6):2050-2058.
APA	Zhou, Feng-Xi,&Gao, Guo-Yao.(2019).Steady-state analysis of the heat-moisture-salt coupling for unsaturated soil.Yantu Lixue/Rock and Soil Mechanics,40(6),2050-2058.
MLA	Zhou, Feng-Xi,et al."Steady-state analysis of the heat-moisture-salt coupling for unsaturated soil".Yantu Lixue/Rock and Soil Mechanics 40.6(2019):2050-2058.