Field test and semi-analytical simulation of unsaturated road subgrade in various water content subjected to a heavy duty truck
文献类型：期刊论文
| 作者 | Lu, Zheng1; Tang, Chuxuan1,2; Duan, Yahui3; Fang, Ran4; Yao, Hailin1; Guo, Shuan5 |
| 刊名 | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 144期号:-页码:12 |
| 关键词 | Field test Unsaturated soil Dynamic response Stiffness matrix method Analytical simulation |
| ISSN号 | 0267-7261 |
| DOI | 10.1016/j.soildyn.2021.106667 |
| 英文摘要 | Field test is the most direct and essential way to evaluate subgrade dynamic responses, which is of great importance in designing and ensuring long-term subgrade performance. Many researchers have performed field tests considering the dynamic responses of subgrade. However, in the previous tests, the water content of the soil, which decides the mechanical properties of unsaturated soil, is rarely considered. In this paper, the dynamic responses of subgrade in different saturations are investigated by both field tests and analytical simulations. The vertical stress and acceleration tested in the field under different water contents, depths, truck speeds, and axle weights are presented. The result shows that as the water content in the subgrade rises, vertical stress variation is insignificant, while the amplitude of acceleration increases. According to the distribution of water content of the subgrade, a double-layer unsaturated soil model was proposed using the stiffness matrix method. The comparison between field test and simulation results shows that the agreement is good. |
| 资助项目 | outstanding youth fund of Hubei Province[2017CFA056] ; Natural Science Foundation of China[41672312] ; Natural Science Foundation of China[41972294] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000684926400003 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27675]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Wuchang Univ Technol, Sch Urban Construct, Wuhan 430023, Peoples R China 4.Cent & Southern China Municipal Engn Design & Res, Wuhan 430010, Peoples R China 5.Hunan Commun Res Inst Co Ltd, Changsha 410015, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Zheng,Tang, Chuxuan,Duan, Yahui,et al. Field test and semi-analytical simulation of unsaturated road subgrade in various water content subjected to a heavy duty truck[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2021,144(-):12. |
| APA | Lu, Zheng,Tang, Chuxuan,Duan, Yahui,Fang, Ran,Yao, Hailin,&Guo, Shuan.(2021).Field test and semi-analytical simulation of unsaturated road subgrade in various water content subjected to a heavy duty truck.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,144(-),12. |
| MLA | Lu, Zheng,et al."Field test and semi-analytical simulation of unsaturated road subgrade in various water content subjected to a heavy duty truck".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 144.-(2021):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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