A creep constitutive model for frozen soils with different contents of coarse grains
文献类型：期刊论文
| 作者 | Hou, Feng1; Lai, Yuanming2; Liu, Enlong1,2; Luo, Huiwu1; Liu, Xingyan2 |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 145页码:119-126 |
| 关键词 | Hardening Damage Mass ratio of coarse-grained particles to silty clay Creep constitutive mode |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2017.10.013 |
| 通讯作者 | Liu, Enlong(liuenlong@lzb.ac.cn) |
| 英文摘要 | The triaxial creep tests of frozen silty clay mixed with different contents of coarse grains were performed at 0.3 MPa confining pressure at - 10 degrees C. Four sets of mass ratio of coarse-grained particles to silty clay are 0.0, 0.2, 0.4 and 0.6 used to form the frozen samples, and the test results demonstrate that: when the shear stress level is low, the tested sample exhibits an attenuation creep; when the shear stress level is high, the tested sample behaves as a non-attenuation creep. It is found that the initial shear modulus and yield strength become greater with the increasing mass ratio of coarse-grained particles to silty clay, but the long-term strength shows an opposite trend. Through the analysis of creep mechanism, both the new hardening variable and damage variable are introduced to improve the Nishihara model, and the three-dimensional formulation of the model is also formulated. According to the experimental results and analysis on the creep model, the model parameters are determined and identified. The simulation results show that the new model can describe the whole creep process of artificial frozen soils with different contents of coarse-grained particles well. Finally, the influences of the mass ratio of coarse-grained particles to silty clay on the parameters are also analyzed, which provides a reference for engineering application in cold regions. |
| 收录类别 | SCI |
| WOS关键词 | SALT ROCK ; DAMAGE ; BEHAVIOR ; REGIONS |
| 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:000415834800012 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557637 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Liu, Enlong |
| 作者单位 | 1.Sichuan Univ, Coll Water Resources & Hydropower, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, Peoples R China 2.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Inst, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou, Feng,Lai, Yuanming,Liu, Enlong,et al. A creep constitutive model for frozen soils with different contents of coarse grains[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2018,145:119-126. |
| APA | Hou, Feng,Lai, Yuanming,Liu, Enlong,Luo, Huiwu,&Liu, Xingyan.(2018).A creep constitutive model for frozen soils with different contents of coarse grains.COLD REGIONS SCIENCE AND TECHNOLOGY,145,119-126. |
| MLA | Hou, Feng,et al."A creep constitutive model for frozen soils with different contents of coarse grains".COLD REGIONS SCIENCE AND TECHNOLOGY 145(2018):119-126. |
入库方式： iSwitch采集
来源：寒区旱区环境与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。