Influence of freeze-thaw on the stored free energy in soils
文献类型：期刊论文
| 作者 | Yao, Xiaoliang; Qi, Jilin; Ma, Wei |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2009-05-01 |
| 卷号 | 56期号:2-3页码:115-119 |
| 关键词 | Stored free energy Freeze-thaw Dry unit weight Freezing condition |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2008.11.001 |
| 通讯作者 | Qi, Jilin(qijilin@lzb.ac.cn) |
| 英文摘要 | In K(0) consolidation, i.e. laterally confined compression, the axial pressure creates some plastic work on the soil samples. Part of this plastic work is dissipated by friction between soil grains. The other part is stored as free energy (SFE) in the soil. When the soil micro-structure is disturbed, SFE is either accumulated or released. In this paper, formula for SFE is deduced under K(0) conditions. Lanzhou loess and Qinghai-Tibet silty clay were used as study objects. After freeze-thaw, changes in mechanical properties of the two soils lead to the changes in SFE. It is found that freeze-thaw has different effects on the soil density, and thus on SFE. They are increased for the soils with low original dry unit weight, and decreased for the soils with high original dry unit weight. (C) 2008 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 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:000265993600008 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556250 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Qi, Jilin |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Xiaoliang,Qi, Jilin,Ma, Wei. Influence of freeze-thaw on the stored free energy in soils[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2009,56(2-3):115-119. |
| APA | Yao, Xiaoliang,Qi, Jilin,&Ma, Wei.(2009).Influence of freeze-thaw on the stored free energy in soils.COLD REGIONS SCIENCE AND TECHNOLOGY,56(2-3),115-119. |
| MLA | Yao, Xiaoliang,et al."Influence of freeze-thaw on the stored free energy in soils".COLD REGIONS SCIENCE AND TECHNOLOGY 56.2-3(2009):115-119. |
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来源：寒区旱区环境与工程研究所
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