Experimental and numerical simulations on heat-water-mechanics interaction mechanism in a freezing soil
文献类型：期刊论文
| 作者 | Li, Shuangyang; Zhang, Mingyi1; Pei, Wansheng; Lai, Yuanming |
| 刊名 | APPLIED THERMAL ENGINEERING
 |
| 出版日期 | 2018-03-05 |
| 卷号 | 132页码:209-220 |
| ISSN号 | 1359-4311 |
| 关键词 | Cold region Freezing soil Frost heave Soil column Heat-water-mechanics model |
| DOI | 10.1016/j.applthermaleng.2017.12.061 |
| 通讯作者 | Zhang, Mingyi(myzhang@lzb.ac.cn) |
| 英文摘要 | In cold regions, the annual ground freezing is responsible for many distinct and widespread terrain features, such as ice wedges, frost mound and ground ice. In particular, the frost action caused by the soil freezing is a prevailing and heavy damage to engineering structures. The frost heave process of a freezing soil involves complicated coupled heat and water transfers as well as mechanical variation. To explore this multi-physical interaction, first, we built a numerical heat-water-mechanics model based on energy, mass and momentum conservation principles. In this model, several critical important characteristics of the freezing soil are taken into account. Then, we carried out a one-side freezing experiment of silty clay column in an open system with non-pressure water supply. Meanwhile, we used the experiment to simulate the water, temperature and deformation variations of the freezing soil column. The simulated temperatures and displacement well agree with those measured data, which implies the numerical model is valid and can describe the heat-water-mechanics process in the freezing soil. Finally, the heat-water mechanics interaction mechanism of the freezing soil is explained and analyzed by combining the experimental investigation and numerical simulation. This study is helpful to better understand the interaction between water, temperature, deformation and the frost heave mechanism of the freezing soil. Furthermore, the model and results in the study can serve as references for further investigation, too. (C) 2017 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | FROZEN SOIL ; FROST HEAVE ; COUPLED HEAT ; PIPELINE INTERACTION ; PERMAFROST REGIONS ; MODEL ; TEMPERATURE ; TRANSPORT ; TUNNEL |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
| WOS类目 | Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000426021800020 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558103 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhang, Mingyi |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Frozen Soil Engn Cold & Arid Reg En, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Shuangyang,Zhang, Mingyi,Pei, Wansheng,et al. Experimental and numerical simulations on heat-water-mechanics interaction mechanism in a freezing soil[J]. APPLIED THERMAL ENGINEERING,2018,132:209-220. |
| APA | Li, Shuangyang,Zhang, Mingyi,Pei, Wansheng,&Lai, Yuanming.(2018).Experimental and numerical simulations on heat-water-mechanics interaction mechanism in a freezing soil.APPLIED THERMAL ENGINEERING,132,209-220. |
| MLA | Li, Shuangyang,et al."Experimental and numerical simulations on heat-water-mechanics interaction mechanism in a freezing soil".APPLIED THERMAL ENGINEERING 132(2018):209-220. |
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来源：寒区旱区环境与工程研究所
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