Constitutive modelling of Otaniemi soft clay in both natural and reconstituted states
文献类型：期刊论文
| 作者 | Yang, Chao1; Liu, Xiliang2; Liu, Xianfeng1; Yang, Chengsong3; Carter, John P.1 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2015-10-01 |
| 卷号 | 70页码:83-95 |
| 关键词 | Soft clay Plastic anisotropy Cementation Reconstitution Soil structure Constitutive relations Elastoplasticity |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2015.07.018 |
| 通讯作者 | Yang, Chao(chao.yang@newcastle.edu.au) |
| 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 |
| WOS关键词 | LOWER CROMER TILL ; STRUCTURED SOILS ; PLASTIC ANISOTROPY ; COMPRESSION ; BEHAVIOR ; DESTRUCTURATION |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| WOS类目 | Computer Science, Interdisciplinary Applications ; Engineering, Geological ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000362609700008 |
| 出版者 | ELSEVIER SCI LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557010 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Yang, Chao |
| 作者单位 | 1.Univ Newcastle, Ctr Excellence Geotech Sci & Engn, Callaghan, NSW 2308, Australia 2.Henan Polytech Univ, Sch Civil Engn, Jiaozuo 454000, Peoples R China 3.CAREERI, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Chao,Liu, Xiliang,Liu, Xianfeng,et al. Constitutive modelling of Otaniemi soft clay in both natural and reconstituted states[J]. COMPUTERS AND GEOTECHNICS,2015,70:83-95. |
| APA | Yang, Chao,Liu, Xiliang,Liu, Xianfeng,Yang, Chengsong,&Carter, John P..(2015).Constitutive modelling of Otaniemi soft clay in both natural and reconstituted states.COMPUTERS AND GEOTECHNICS,70,83-95. |
| MLA | Yang, Chao,et al."Constitutive modelling of Otaniemi soft clay in both natural and reconstituted states".COMPUTERS AND GEOTECHNICS 70(2015):83-95. |
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来源：寒区旱区环境与工程研究所
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