Combined constitutive model for creep and steady flow rate of frozen soil in an unconfined condition
文献类型：期刊论文
| 作者 | Wu, Wei2; Xu, Guofang2,3; Peng, Chong2; Qi, Jilin1 |
| 刊名 | CANADIAN GEOTECHNICAL JOURNAL
 |
| 出版日期 | 2017 |
| 卷号 | 54期号:7页码:907-914 |
| 关键词 | frozen soil creep steady flow rate creep strength constitutive model |
| ISSN号 | 0008-3674 |
| DOI | 10.1139/cgj-2016-0139 |
| 英文摘要 | A combined constitutive model is developed for the creep behavior of frozen soil in an unconfined condition. The model is obtained by coupling two stress-and time-dependent models, which are responsible for the primary and tertiary creep stages. The model parameters are dependent on temperature and can be readily determined from the strain rate-time curves at two creep stresses. The model performance is demonstrated by simulating the complete strain-time and strain rate-time curves (including primary, secondary, and tertiary stages) of frozen sand and frozen clay in uniaxial creep tests under different creep stresses. Moreover, two equations are obtained from the combined model. One shows a good capability in describing the relationship between creep strength and the time to creep failure. The other makes an excellent prediction of the steady flow rate in a typical creep process. Both equations can reflect the effects of stress and temperature on the creep behavior of frozen soil. |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000404459000001 |
| 出版者 | CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4087]  |
| 专题 | 岩土力学所知识全产出_期刊论文 |
| 作者单位 | 1.Beijing Univ Civil Engn & Architecture, Sch Civil & Transportat Engn ; 2.Univ Nat Resources & Life Sci, Inst Geotech Engn; 3.Chinese Acad Sci, Wuhan Inst Rock & Soil Mech |
| 推荐引用方式 GB/T 7714 | Wu, Wei,Xu, Guofang,Peng, Chong,et al. Combined constitutive model for creep and steady flow rate of frozen soil in an unconfined condition[J]. CANADIAN GEOTECHNICAL JOURNAL,2017,54(7):907-914. |
| APA | Wu, Wei,Xu, Guofang,Peng, Chong,&Qi, Jilin.(2017).Combined constitutive model for creep and steady flow rate of frozen soil in an unconfined condition.CANADIAN GEOTECHNICAL JOURNAL,54(7),907-914. |
| MLA | Wu, Wei,et al."Combined constitutive model for creep and steady flow rate of frozen soil in an unconfined condition".CANADIAN GEOTECHNICAL JOURNAL 54.7(2017):907-914. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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