A chemo-elastic–plastic model for unsaturated expansive clays
文献类型：期刊论文
| 作者 | Xiaoqin Lei ; Henry Wong; Antonin Fabbri; Ali Limam; Y.M. Cheng
|
| 刊名 | International Journal of Solids and Structures
 |
| 出版日期 | 2016 |
| 页码 | 354-378 |
| 关键词 | Chemo-mechanical coupling Elastic-plasticity Unsaturated soil Expansive clay Double structure |
| ISSN号 | 0020-7683 |
| 通讯作者 | Henry Wong |
| 英文摘要 | Clays are widely used as sealing materials in various geotechnical and geo-environmental engineering ap- plications. These clays are usually unsaturated and are sensitive to chemical composition of the saturat- ing solutions. During their service period, various mechanical, chemical, and hydraulic loading conditions, usually coupled with each other, can be encountered. It is necessary to use a chemo-elastic–plastic unsat- urated model to account for these coupled loading paths and simulate the possible behaviours of these clays in their realistic engineering context. In this paper, based on the thermodynamic framework (Lei et al., 2014) for unsaturated expansive clays, the chemo-elastic–plastic model developed by Loret et al. (2002) for saturated homoionic expansive clays is extended to the general unsaturated case. From a the- oretical analysis, it is shown that this model is sufficient to simulate the typical behaviours under various mechanical, chemical, and hydraulic loading conditions. The model is then validated against available ex- perimental data of oedometer tests concerning purely mechanical and mixed chemo-mechanical loadings under controlled matric suction on reconstituted Boom Clay mixed with NaNO 3 solution. Reasonably ac- curate estimates of quantitative responses of these complex coupled geochemical loading paths can be obtained, thus giving us a preliminary insight on chemo-hydro-mechanical coupled behaviours. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/17687]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 推荐引用方式 GB/T 7714 | Xiaoqin Lei,Henry Wong,Antonin Fabbri,et al. A chemo-elastic–plastic model for unsaturated expansive clays[J]. International Journal of Solids and Structures,2016:354-378. |
| APA | Xiaoqin Lei,Henry Wong,Antonin Fabbri,Ali Limam,&Y.M. Cheng.(2016).A chemo-elastic–plastic model for unsaturated expansive clays.International Journal of Solids and Structures,354-378. |
| MLA | Xiaoqin Lei,et al."A chemo-elastic–plastic model for unsaturated expansive clays".International Journal of Solids and Structures (2016):354-378. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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