Theoretical modeling framework for an unsaturated freezing soil
文献类型：期刊论文
| 作者 | Li, Ning1,2; Chen, Feixiong3; Xu, Bin; Swoboda, Gunter4 |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2008-09-01 |
| 卷号 | 54期号:1页码:19-35 |
| 关键词 | Freezing soil Unsaturated Frost heave Thaw settlement Modeling framework FEM model Quasi-confined media |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2007.12.001 |
| 通讯作者 | Li, Ning(ningli@xaut.edu.cn) |
| 英文摘要 | Based on the authors' theoretical modeling framework of the saturated freezing soil, this paper further discusses the air phase in the unsaturated freezing soil in two ideal situations: air in the soil is linked to the atmosphere (the open porous medium) and air ill the soil is isolated from the atmosphere (the sealed porous medium). The corresponding theoretical modeling framework for a multi-phase porous medium with interaction of water, heat and deformation is established in this paper. The proposed theoretical model is then extended to the general case (unsaturated half-open and half-sealed porous medium). Also, a finite element numerical solution to the heat-moisture-deformation coupling behavior of the unsaturated freezing soil is obtained. The computer software for solving this problem is also developed. The in-situ measurements for Hua Shixia highway roadbed located in Qinghai-Tibetan Plateau are introduced to compare with the numerical results obtained by the proposed model. The measurement results indicate that the numerical results for the temperature field variations with time are found to be in good correlation with the roadbed depth, just as the relative freezing deformations are correlated with road surface. Numerical modeling results, when compared to field measurements of temperature and deformation, are within 10 to 20%. The comparative analysis shows that proposed theoretical modeling framework and its numerical solution for the temperature-moisture-deformation coupling behavior is Suitable and acceptable. (C) 2007 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | COUPLED HEAT ; FROST HEAVE ; FROZEN SOIL |
| WOS研究方向 | Engineering ; Geology |
| WOS类目 | Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000260324600003 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556087 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li, Ning |
| 作者单位 | 1.Xian Univ Technol, Inst Geotech Engn, Xian 710048, Shannxi, Peoples R China 2.Chinese Acad Sci, CAREERI, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China 3.Chengdu Metro Corp Ltd, Chengdu 610031, Peoples R China 4.Univ Innsbruck, Inst Struct Anal, A-6020 Innsbruck, Austria |
| 推荐引用方式 GB/T 7714 | Li, Ning,Chen, Feixiong,Xu, Bin,et al. Theoretical modeling framework for an unsaturated freezing soil[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2008,54(1):19-35. |
| APA | Li, Ning,Chen, Feixiong,Xu, Bin,&Swoboda, Gunter.(2008).Theoretical modeling framework for an unsaturated freezing soil.COLD REGIONS SCIENCE AND TECHNOLOGY,54(1),19-35. |
| MLA | Li, Ning,et al."Theoretical modeling framework for an unsaturated freezing soil".COLD REGIONS SCIENCE AND TECHNOLOGY 54.1(2008):19-35. |
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来源：寒区旱区环境与工程研究所
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