In situ model tests to investigate the dynamic response of water-softened subgrade under vibrating loads
文献类型：期刊论文
| 作者 | Li, Jian2; Chen, Shanxiong2; Yu, Fei2; Dai, Zhangjun2; Ojekunle, Olurotimi Victor1 |
| 刊名 | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 出版日期 | 2020-11-01 |
| 卷号 | 138页码:21 |
| 关键词 | Subgrade dynamic response In situ model testing Water-immersion softened subgrade Dynamic loads Water-immersion system |
| ISSN号 | 0267-7261 |
| DOI | 10.1016/j.soildyn.2020.106336 |
| 英文摘要 | The mechanical properties of subgrade filling materials are significantly weakened when subjected to water softening effects and dynamic loads, which causes significant changes in the dynamic response of the subgrade. Research on these changes helps engineers to quickly determine the state of health of the subgrade structure to ensure safe operation of traffic projects. For this reason, this paper first presents a subgrade model test system for in situ testing that can simulate water immersion. Using this as a basis, dynamic response tests are conducted on the subgrade under normal and different water-immersion conditions. The rules governing the variation in the dynamic response of the subgrade under different conditions are thereby obtained. The results show that: (1) the range of influence of the water-immersion effect on the dynamic response of the subgrade is concentrated in the main range affected by external loads; (2) the dynamic parameters (acceleration and dynamic pressure) appear to decrease under water-immersion conditions; (3) there is a diffusion effect in the transmission of the dynamic parameters: at locations far from the vibrating center, there are circumstances wherein the dynamic parameters in the deeper parts are larger than those in shallower parts. |
| 资助项目 | National Natural Science Foundation of China[41702337] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000571422600002 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24822]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Jian |
| 作者单位 | 1.Univ Lagos, Akoka, Nigeria 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jian,Chen, Shanxiong,Yu, Fei,et al. In situ model tests to investigate the dynamic response of water-softened subgrade under vibrating loads[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2020,138:21. |
| APA | Li, Jian,Chen, Shanxiong,Yu, Fei,Dai, Zhangjun,&Ojekunle, Olurotimi Victor.(2020).In situ model tests to investigate the dynamic response of water-softened subgrade under vibrating loads.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,138,21. |
| MLA | Li, Jian,et al."In situ model tests to investigate the dynamic response of water-softened subgrade under vibrating loads".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 138(2020):21. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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