Experimental and numerical investigations on frost damage mechanism of a canal in cold regions
文献类型：期刊论文
| 作者 | Li, Shuangyang1; Zhang, Mingyi1; Tian, Yibin2; Pei, Wansheng2; Zhong, Hua3 |
| 刊名 | Cold regions science and technology
 |
| 出版日期 | 2015-08-01 |
| 卷号 | 116页码:1-11 |
| 关键词 | Canal Cold region Frozen soil Frost heave Coupled water-heat-mechanics model |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2015.03.013 |
| 通讯作者 | Li, shuangyang(lisy@lzb.ac.cn) |
| 英文摘要 | Frost action is a prevailing and heavy damage to canals in cold regions, and it involves complicated heat and mass transfer as well as frost deformation in the seasonal freeze-thaw ground. to explore the frost damage mechanisms of canals in cold regions, firstly, a numerical water-heat-mechanics model is set up and corresponding computer program is developed. secondly, a model test on a canal is carried out in one freezing-thawing cycle. then, the canal model is simulated to analyze its temperature, water and mechanical states during the freezing-thawing process. the results show that under the drive of temperature, the total water contents in freezing-thawing fronts are very high and even a part of the freezing front is filled with ice and unfrozen water, which causes high tensile stress and heavy frost heave. in particular, the deformations at the toe of the canal slope are much larger than those in other zones. therefore, this zone should be monitored closely to ensure safe operation. as a preliminary study, the experimental and numerical model and results in this study may be a reference for design, maintenance and research on other canals in cold regions. (c) 2015 elsevier b.v. all rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | HIGH CONFINING PRESSURES ; FROZEN SOIL ; COUPLED HEAT ; UNSATURATED SOILS ; TIBET RAILWAY ; MASS-TRANSFER ; FREEZE-THAW ; MODEL ; EMBANKMENT ; PERMAFROST |
| 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:000356122800001 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555021 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li, Shuangyang |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China 2.Northwest Res Inst Co Ltd, CREC, Lanzhou 730000, Gansu, Peoples R China 3.Heilongjiang Prov Hydraul Res Inst, Harbin 150080, Heilongjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Shuangyang,Zhang, Mingyi,Tian, Yibin,et al. Experimental and numerical investigations on frost damage mechanism of a canal in cold regions[J]. Cold regions science and technology,2015,116:1-11. |
| APA | Li, Shuangyang,Zhang, Mingyi,Tian, Yibin,Pei, Wansheng,&Zhong, Hua.(2015).Experimental and numerical investigations on frost damage mechanism of a canal in cold regions.Cold regions science and technology,116,1-11. |
| MLA | Li, Shuangyang,et al."Experimental and numerical investigations on frost damage mechanism of a canal in cold regions".Cold regions science and technology 116(2015):1-11. |
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来源：寒区旱区环境与工程研究所
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