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DOI	10.1007/s12205-015-0374-4
	Experimental study and statistical theory of creep behavior of warm frozen silt
	Liao, Mengke; Lai, Yuanming; Yang, Junjie; Li, Shuangyang
发表日期	2016
ISSN	1226-7988
EISSN	1976-3808
起始页码	2333
结束页码	2344
卷号	20 期号:6
英文摘要	To investigate the soil parameters and stochastic mechanical characteristics of warm frozen silt, a series of triaxial compression tests were conducted on frozen silt at the temperature of -1.5A degrees C under confining pressures of 0.5, 1.0, and 2.0 MPa. The results indicate that the creep properties of warm frozen silt are affected considerably by stress levels. The creep show present primary and secondary creep stages under low stress level and indicate that the specimen is destroyed quickly under high stress levels. Based on phenomenological theory, a unified creep constitutive model of warm frozen silt was proposed. The results predicted by the proposed model agree well with corresponding experimental data. Investigation of the random distribution has revealed that the parameters of the proposed creep model could be better described by a normal distribution. Based on the dynamic theory of frozen soil strength, the long-term strength of warm frozen silt was obtained, and was found to exhibit nonlinear behavior with increasing confining pressure. The Weibull function can represent the random distribution well, and the reliabilities of long-term strength were given under different confining pressures.
英文关键词	creep; warm frozen silt; constitutive model; long-term strength; statistical theory
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Civil
WOS关键词	CONSTITUTIVE MODEL ; SOIL ; STRENGTH ; CLAY
WOS记录号	WOS:000382141800025
来源期刊	KSCE JOURNAL OF CIVIL ENGINEERING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239486
作者单位	[Liao, Mengke; Lai, Yuanming; Li, Shuangyang] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China; [Liao, Mengke; Lai, Yuanming; Li, Shuangyang] Chinese Acad Sci, Lanzhou 730000, Peoples R China; [Yang, Junjie] Lanzhou Jiaotong Univ, Sch Civil Engn, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Liao, Mengke,Lai, Yuanming,Yang, Junjie,et al. Experimental study and statistical theory of creep behavior of warm frozen silt[J],2016,20(6).
APA	Liao, Mengke,Lai, Yuanming,Yang, Junjie,&Li, Shuangyang.(2016).Experimental study and statistical theory of creep behavior of warm frozen silt.KSCE JOURNAL OF CIVIL ENGINEERING,20(6).
MLA	Liao, Mengke,et al."Experimental study and statistical theory of creep behavior of warm frozen silt".KSCE JOURNAL OF CIVIL ENGINEERING 20.6(2016).