Constitutive modelling of Otaniemi soft clay in both natural and reconstituted states (SCI)

CORC > 寒区旱区环境与工程研究所 > 中科院寒区旱区环境与工程研究所（未分类） > 期刊论文

	Constitutive modelling of Otaniemi soft clay in both natural and reconstituted states (SCI)
	Yang C.; Liu X. L.; Liu X. F.; Yang C. S.; Carter J. P.
刊名	Computers and Geotechnics
	2015
卷号	70 页码:83-95
英文摘要	A rate-independent anisotropic elastoplastic constitutive model for natural soft clays is proposed, with emphasis on the effects of cementation or structure and fabric anisotropy. The characteristic nonlinear normal compression line for structured soils is described by defining a variable compressibility as a function of plastic straining. No reference to the 'intrinsic' reconstituted state is required. The effect of plastic anisotropy is investigated from virgin constant stress ratio consolidation tests, which provide an accurate description of the equilibrium states of soil fabric. The change of fabric anisotropy is correlated with the change of inclination of the yield and plastic potential surfaces via a pair of improved rotational hardening laws. Experiments on Otaniemi clay samples in both natural and reconstituted states are simulated. Comparisons of numerical predictions with experimental data illustrate the feasibility and advantage of the proposed methodology to describe the mechanical behaviour of natural soft clays. (C) 2015 Elsevier Ltd. All rights reserved.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/27666]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Yang C.,Liu X. L.,Liu X. F.,et al. Constitutive modelling of Otaniemi soft clay in both natural and reconstituted states (SCI)[J]. Computers and Geotechnics,2015,70:83-95.
APA	Yang C.,Liu X. L.,Liu X. F.,Yang C. S.,&Carter J. P..(2015).Constitutive modelling of Otaniemi soft clay in both natural and reconstituted states (SCI).Computers and Geotechnics,70,83-95.
MLA	Yang C.,et al."Constitutive modelling of Otaniemi soft clay in both natural and reconstituted states (SCI)".Computers and Geotechnics 70(2015):83-95.