Swelling characteristics of andesite foundation induced by water immersion and their influence on ballastless track subgrade
文献类型：期刊论文
| 作者 | Duan Jun-yi; Yang Guo-lin; Hu Min; Lei Xiao-qin; Lin Yu-liang |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2020 |
| 卷号 | 17期号:4页码:1001-1012 |
| ISSN号 | 1672-6316 |
| 关键词 | High-speed railway Expansive andesite Heave deformation Lateral swelling pressure Inclination angle Deformation attenuation |
| DOI | 10.1007/s11629-019-5773-4 |
| 文献子类 | Article |
| 英文摘要 | To study the mechanical and deformation characteristics of ballastless track subgrade filled with micro-expansion fillers in a water-immersed environment, a physical model of ballastless track subgrade was constructed on a 1:2 scale with expansive andesite fillers. A water immersion test was carried out to model the soaking of the expansive soil foundation caused by rising groundwater. The swelling behaviors of the foundation and their influences upon the mechanics and deformations of the subgrade were analyzed. The lateral swelling pressure of the foundation and the heave of the subgrade obviously increased due to the water immersion, and the values were closely related to the overlying load and lateral restraint. The heave deformation of the double-line ballastless track subgrade showed significant nonuniformity along the lateral direction, causing the track slab to incline with a maximum inclination angle of 1.55x10-3 deg. The heave of the foundation caused a heave in subgrade, but this transferred heave was significantly attenuated. The attenuation rate of the heave at the midline of the track slab was up to 13.38%. The attenuation characteristic can be fully utilized for the anti-heave deformation measures of railway subgrade in expansive soil areas. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000525174500017 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/46808]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2020_Vol17 No.4 |
| 推荐引用方式 GB/T 7714 | Duan Jun-yi,Yang Guo-lin,Hu Min,et al. Swelling characteristics of andesite foundation induced by water immersion and their influence on ballastless track subgrade[J]. JOURNAL OF MOUNTAIN SCIENCE,2020,17(4):1001-1012. |
| APA | Duan Jun-yi,Yang Guo-lin,Hu Min,Lei Xiao-qin,&Lin Yu-liang.(2020).Swelling characteristics of andesite foundation induced by water immersion and their influence on ballastless track subgrade.JOURNAL OF MOUNTAIN SCIENCE,17(4),1001-1012. |
| MLA | Duan Jun-yi,et al."Swelling characteristics of andesite foundation induced by water immersion and their influence on ballastless track subgrade".JOURNAL OF MOUNTAIN SCIENCE 17.4(2020):1001-1012. |
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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