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DOI	10.16285/j.rsm.2020.0771
	Freeze-thaw cycles-physical time analogy theory based method for predicting long-term shear strength of frozen soil
	Zhang Ze; Ma Wei; Roman, Lidia; Melnikov, Andrey; Yang Xi; Li Hong-bi
通讯作者	Zhang, Z (通讯作者)，Northeast Forestry Univ, Sch Civil Engn, Inst Cold Reg Sci & Engn, Harbin 150040, Heilongjiang, Peoples R China. ; Zhang, Z (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China. ; Zhang, Z (通讯作者)，Northeast Forestry Univ, Coordinated Innovat Ctr Permafrost Environm & Rd, Harbin 150040, Heilongjiang, Peoples R China.
发表日期	2021
ISSN	1000-7598
起始页码	86
结束页码	92
卷号	42 期号:1
英文摘要	Freezing and thawing processes can change the structure of frozen soil and reduce the mechanical properties, thus affecting the stability of engineering infrastructures built in frozen soil. Due to the different settings of freeze-thaw cycles, a large number of experimental results cannot be effectively compared and analyzed. In addition, estimating the soil mechanical characteristics under freeze-thaw action has also become a research difficulty. In this paper, based on the frozen soil genetic creep theory, a spherical indenter is developed, and a freeze-thaw cycle physical time analogy method is proposed. Using the number of cycles (numbers of freeze-thaw cycles) and the duration time (physical time minutes), we can obtain the long-term strength curve family of the frozen soil and mapping the curve family into the same stress space to achieve the normalized strength curve, and thus we can predict the long-term deformation and shear strength. Finally, two soil samples are selected for testing, and the relevant equations for predicting the long-term shear strength are obtained. This method has important theoretical significance for the comparative study on the mechanical behavior of frozen soils under freeze-thaw actions. It also has value for engineering practice and stability analysis of infrastructures built in cold regions.
关键词	SPHERICAL TEMPLATE INDENTER VOLUME CHANGES PERMEABILITY
英文关键词	freeze-thaw cycle; frozen soil mechanics; long-term frozen soil strength; time analogy method; spherical indenter
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Geological
WOS记录号	WOS:000664831700009
来源期刊	ROCK AND SOIL 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/254935
作者单位	[Zhang Ze] Northeast Forestry Univ, Sch Civil Engn, Inst Cold Reg Sci & Engn, Harbin 150040, Heilongjiang, Peoples R China; [Zhang Ze; Ma Wei] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; [Zhang Ze] Northeast Forestry Univ, Coordinated Innovat Ctr Permafrost Environm & Rd, Harbin 150040, Heilongjiang, Peoples R China; [Roman, Lidia] Lomonosov Moscow State Univ, Fac Geol, Dept Geocryol, Moscow, Russia; [Melnikov, Andrey] Russian Acad Sci, Melnikov Permafrost Inst, Siberian Branch, Yakutsk, Russia; [Yang Xi; Li Hong-bi] Yalong River Hydropower Dev Co, Chengdu 610051, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zhang Ze,Ma Wei,Roman, Lidia,et al. Freeze-thaw cycles-physical time analogy theory based method for predicting long-term shear strength of frozen soil[J]. 中国科学院西北生态环境资源研究院,2021,42(1).
APA	Zhang Ze,Ma Wei,Roman, Lidia,Melnikov, Andrey,Yang Xi,&Li Hong-bi.(2021).Freeze-thaw cycles-physical time analogy theory based method for predicting long-term shear strength of frozen soil.ROCK AND SOIL MECHANICS,42(1).
MLA	Zhang Ze,et al."Freeze-thaw cycles-physical time analogy theory based method for predicting long-term shear strength of frozen soil".ROCK AND SOIL MECHANICS 42.1(2021).