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DOI	10.1016/j.coldregions.2009.09.001
	The strength criterion and elastoplastic constitutive model of frozen soil under high confining pressures
	Yang, Yugui; Lai, Yuanming; Dong, Yuanhong; Li, Shuangyang
发表日期	2010
ISSN	0165-232X
EISSN	1872-7441
起始页码	154
结束页码	160
卷号	60 期号:2
英文摘要	A series of triaxial compressive tests of frozen soil has been conducted at a temperature of -6 degrees C under high confining pressures. The results verify that the strength of frozen soil increases to a peak value with increasing confining pressure, but with a further increase in confining pressure. the strength decreases for crushing and pressure melting phenomena under high confining pressures. In order to meet the needs of the engineering activities in underground works, where the frozen soil is under high confining pressures, a new failure criterion is proposed based on the experimental results. To analyze the deformation of frozen soil under high confining pressures, an elastoplastic constitutive model has to be established. In this study. the yield condition is proposed by employing ail elliptical yield surface. The plastic potential surface depends on the same arguments, but a nonassociated flow rule is used. All parameters of the model are identified by tests. The validity of the model is verified by comparing its modeling results with the corresponding experimental results. (C) 2009 Elsevier B.V. All rights reserved.
英文关键词	Failure criterion; Frozen soil; High confining pressures; Constitutive model
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS关键词	STRAIN ; BEHAVIOR ; DEFORMATION ; SAND ; CLAY
WOS记录号	WOS:000274036600006
来源期刊	COLD REGIONS SCIENCE AND TECHNOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239527
作者单位	[Yang, Yugui; Lai, Yuanming; Dong, Yuanhong; Li, Shuangyang] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yugui,Lai, Yuanming,Dong, Yuanhong,et al. The strength criterion and elastoplastic constitutive model of frozen soil under high confining pressures[J],2010,60(2).
APA	Yang, Yugui,Lai, Yuanming,Dong, Yuanhong,&Li, Shuangyang.(2010).The strength criterion and elastoplastic constitutive model of frozen soil under high confining pressures.COLD REGIONS SCIENCE AND TECHNOLOGY,60(2).
MLA	Yang, Yugui,et al."The strength criterion and elastoplastic constitutive model of frozen soil under high confining pressures".COLD REGIONS SCIENCE AND TECHNOLOGY 60.2(2010).