Shear behavior of loess: The role of drainage condition
文献类型：期刊论文
| 作者 | Liu, Xin1; Miao, Xueqing1; Qin, Zehua1; Huang, Guangjing1; Lan, Hengxing1,2 |
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 309页码:7 |
| 关键词 | Loess Strain increment ratio Drainage condition Shear behavior |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2022.106835 |
| 通讯作者 | Liu, Xin(xliu67@chd.edu.cn) ; Lan, Hengxing(lanhx@igsnrr.ac.cn) |
| 英文摘要 | This technical note investigates the shear behavior of loess using a specifically designed triaxial test scheme, in which five different drainage conditions of loess were controlled by a strain increment ratio (dev/dea) in the shear stage. It was established that with an increase in the strain increment ratio, the behavior of the loess samples changed from strain-softening to strain-hardening behaviors in the triaxial test. When dev/dea was less than zero, a strong contractive strain-softening behavior was revealed with a large collapsibility index. In the shear stage of a partially drained condition, the loess sample yielded a 'limited flow' behavior, which was marked by an occurrence of phase transformation from contractive to dilative response in the q-p' diagram. More importantly, a unique relationship between the strain increment ratio and stress ratio (q/p') was established for the test materials. The experimental results suggest a pressing need to thoroughly consider the drainage conditions of loess and the associated impacts on shear. |
| WOS关键词 | QUASI-STEADY-STATE ; INSTABILITY ; LANDSLIDE ; SAND |
| 资助项目 | National Natural Science Foundation of China[42041006] ; National Natural Science Foundation of China[41927806] ; National Natural Science Foundation of China[41807226] ; Natural Science Basic Research Plan in Shaanxi Province of China[2022JQ-251] ; Fundamental Research Funds for the Central Universities through Chang?an University, China[300102260201] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000859505400001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; Fundamental Research Funds for the Central Universities through Chang?an University, China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/185270]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Xin; Lan, Hengxing |
| 作者单位 | 1.Changan Univ, Coll Geol Engn & Geomat, Xian, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, LREIS, Beijing 100864, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xin,Miao, Xueqing,Qin, Zehua,et al. Shear behavior of loess: The role of drainage condition[J]. ENGINEERING GEOLOGY,2022,309:7. |
| APA | Liu, Xin,Miao, Xueqing,Qin, Zehua,Huang, Guangjing,&Lan, Hengxing.(2022).Shear behavior of loess: The role of drainage condition.ENGINEERING GEOLOGY,309,7. |
| MLA | Liu, Xin,et al."Shear behavior of loess: The role of drainage condition".ENGINEERING GEOLOGY 309(2022):7. |
入库方式： OAI收割
来源：地理科学与资源研究所
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