气候变化领域集成服务门户(CCPortal): Study thermo-hydro-mechanical coupling behaviors of saturated frozen soil based on granular solid hydrodynamics theory

CCPortal

DOI	10.1007/s00419-021-01987-1
	Study thermo-hydro-mechanical coupling behaviors of saturated frozen soil based on granular solid hydrodynamics theory
	Zhang, Ge; Liu, Enlong; Zhang, Guike; Chen, Yong
通讯作者	Liu, EL (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0939-1533
EISSN	1432-0681
起始页码	3921
结束页码	3936
卷号	91 期号:9
英文摘要	Based on non-equilibrium thermodynamic theory and granular solid hydrodynamic (GSH), a thermodynamic constitutive model for saturated frozen soil is developed. According to continuum mechanics, mass, momentum, energy conservation equations are presented in which the water-ice phase transformation in frozen soil is taken into consideration. By introducing the GSH theory concepts, the entropy balance and granular entropy equations of saturated frozen soil are built. The thermodynamic state variables describing mechanical field, temperature field and seepage field for saturated frozen soil are introduced. Combining energy conservation with thermodynamic state equations, the kinetic equations are given to build a fully coupled thermo-hydro-mechanical (THM) equations of saturated frozen soil. From the thermodynamic kinetic equations, the inelastic strain and total stress equations are formulated. The thermodynamic constitutive model for saturated frozen soil is proposed, based on non-equilibrium thermodynamic and granular solid hydrodynamic. A series of cryogenic triaxial tests at -6 degrees C on saturated frozen sandy soil under different confining pressures were conducted to verify the proposed thermodynamic constitutive model. Comparing experimental results with modeling results, the model predictions can agree well with the experimental data. Then the model parameters sensitivity discussions are given.
关键词	CONSTITUTIVE MODEL NUMERICAL-ANALYSIS DAMAGE STRESS WATER HEAT
英文关键词	Non-equilibrium thermodynamic; Granular solid hydrodynamics; Saturated frozen soil; Thermodynamic state variables; Thermo-hydro-mechanical
语种	英语
WOS研究方向	Mechanics
WOS类目	Mechanics
WOS记录号	WOS:000656420500003
来源期刊	ARCHIVE OF APPLIED MECHANICS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254194
作者单位	[Zhang, Ge; Chen, Yong] Three Gorges Univ, Coll Civil Engn & Architecture, Yichang 443002, Peoples R China; [Zhang, Ge; Liu, Enlong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Liu, Enlong] Sichuan Univ, Coll Water Resources & Hydropower, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China; [Zhang, Guike] Yalong River Hydropower Dev Co Ltd, Chengdu 610051, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ge,Liu, Enlong,Zhang, Guike,et al. Study thermo-hydro-mechanical coupling behaviors of saturated frozen soil based on granular solid hydrodynamics theory[J]. 中国科学院西北生态环境资源研究院,2021,91(9).
APA	Zhang, Ge,Liu, Enlong,Zhang, Guike,&Chen, Yong.(2021).Study thermo-hydro-mechanical coupling behaviors of saturated frozen soil based on granular solid hydrodynamics theory.ARCHIVE OF APPLIED MECHANICS,91(9).
MLA	Zhang, Ge,et al."Study thermo-hydro-mechanical coupling behaviors of saturated frozen soil based on granular solid hydrodynamics theory".ARCHIVE OF APPLIED MECHANICS 91.9(2021).