Experimental and theoretical studies on the creep behavior of warm ice-rich frozen sand
文献类型：期刊论文
| 作者 | Yang, Yugui; Lai, Yuanming; Chang, Xiaoxiao |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2010-08-01 |
| 卷号 | 63期号:1-2页码:61-67 |
| 关键词 | Warm ice-rich frozen sand Creep Constitutive model Stability of embankment |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2010.04.011 |
| 通讯作者 | Lai, Yuanming(ymlai@lzb.ac.cn) |
| 英文摘要 | It is recognized experimentally that the creep property of warm ice-rich frozen soils will cause a significant deformation, which affects the stability of infrastructure constructed in permafrost regions. In this paper, the creep behavior of warm ice-rich frozen sand is investigated through a series of experimental data under different stress levels at temperatures of -1.0 degrees C, -1.5 degrees C and -2.0 degrees C, respectively. The results showed that the creep characteristic of warm ice-rich frozen sand is greatly affected by the stress levels. The creep curves mainly present the decaying and the stable creep stages under low stress levels. However, under high stress levels, once the strain increasing to critical value, the creep strain velocity gradually increases and the specimen quickly happen to destroy. To reproduce the creep process of warm ice-rich frozen sand, a statistical damage constitutive model, in which the Weibull function is employed to describe the random distribution of inner flaw in creep process, is proposed based on the experimental results. The validity of the model is verified by comparing its modeling results with the results of creep tests both under low and high stress levels. It is found that the results predicted by this model agree well with the corresponding experimental data. (C) 2010 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | DAMAGE CONSTITUTIVE MODEL ; QINGHAI-TIBET RAILWAY ; TEMPERATURE ; EMBANKMENT ; CLAY |
| 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:000280023600007 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556333 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Lai, Yuanming |
| 作者单位 | Chinese Acad Sci, Lanzhou Inst Chem Phys, 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 | Yang, Yugui,Lai, Yuanming,Chang, Xiaoxiao. Experimental and theoretical studies on the creep behavior of warm ice-rich frozen sand[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2010,63(1-2):61-67. |
| APA | Yang, Yugui,Lai, Yuanming,&Chang, Xiaoxiao.(2010).Experimental and theoretical studies on the creep behavior of warm ice-rich frozen sand.COLD REGIONS SCIENCE AND TECHNOLOGY,63(1-2),61-67. |
| MLA | Yang, Yugui,et al."Experimental and theoretical studies on the creep behavior of warm ice-rich frozen sand".COLD REGIONS SCIENCE AND TECHNOLOGY 63.1-2(2010):61-67. |
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来源：寒区旱区环境与工程研究所
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