Numerical analysis for the role of soil properties to the load transfer in clay foundation due to the traffic load of the metro tunnel
文献类型：期刊论文
| 作者 | Yang J4; Yin ZY4; Liu XF3; Gao FP(高福平)1,2
|
| 刊名 | TRANSPORTATION GEOTECHNICS
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 23页码:13 |
| 关键词 | Clay Anisotropy Bounding surface Traffic load Finite difference method |
| ISSN号 | 2214-3912 |
| DOI | 10.1016/j.trgeo.2020.100336 |
| 通讯作者 | Yin, Zhen-Yu(zhenyu.yin@polyu.edu.hk) |
| 英文摘要 | Soil properties play important role to the metro tunnel settlement induced by traffic load of metro operation. Numerical studies on this topic are still rare due to the lack of accurate dynamic constitutive models of clay. In this study, a new critical state based bounding surface plasticity model for natural structured clays is first developed. It is able to consider the initial and induced anisotropy of natural clay and the structure disturbance to the initial size of yield surface and to the initial adhesive stress by cyclic loading at low-stress levels. The applicability of the present model is evaluated through comparisons between the predicted and the measured results of numerous stress-path tests on Shanghai clay and Vallericca stiff clay. The model is then implemented as a user-defined model in a finite difference code. A typical tunnel in clay is simulated using the implemented model coupled with Biot's consolidation, for which the stress distribution pattern in subsoils around tunnels due to train movement is investigated. The role of the dynamic constitutive model has been highlighted by comparing the simulation results of a static constitutive model and a dynamic constitutive model. The influences of the soil properties such as the anisotropy, structure ratio, and adhesive mean stress have been found significant to the load tranfer. |
| 分类号 | 二类 |
| WOS关键词 | DYNAMIC-RESPONSE ; MECHANICAL-BEHAVIOR ; CONSTITUTIVE MODEL ; INDUCED SETTLEMENT ; SATURATED CLAY ; DEFORMATION ; PARAMETERS ; SAND |
| 资助项目 | GRF project from the Research Grants Council (RGC) of Hong Kong[15209119] ; SiChuan Province - Science & Technology Department of Sichuan Province[2019YFSY0015] ; National Universities - Science & Technology Department of Sichuan Province[2019YFSY0015] ; Open research grant of MOE Key Laboratory of High-speed Railway Engineering |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000531595800002 |
| 资助机构 | GRF project from the Research Grants Council (RGC) of Hong Kong ; SiChuan Province - Science & Technology Department of Sichuan Province ; National Universities - Science & Technology Department of Sichuan Province ; Open research grant of MOE Key Laboratory of High-speed Railway Engineering |
| 其他责任者 | Yin, Zhen-Yu |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/82009]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Univ Chinese Acad Sci, China Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 3.Southwest Jiaotong Univ, Sch Civil Engn, Key Lab High Speed Railway Engn, Minist Educ, Chengdu 610031, Peoples R China; 4.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yang J,Yin ZY,Liu XF,et al. Numerical analysis for the role of soil properties to the load transfer in clay foundation due to the traffic load of the metro tunnel[J]. TRANSPORTATION GEOTECHNICS,2020,23:13. |
| APA | Yang J,Yin ZY,Liu XF,&高福平.(2020).Numerical analysis for the role of soil properties to the load transfer in clay foundation due to the traffic load of the metro tunnel.TRANSPORTATION GEOTECHNICS,23,13. |
| MLA | Yang J,et al."Numerical analysis for the role of soil properties to the load transfer in clay foundation due to the traffic load of the metro tunnel".TRANSPORTATION GEOTECHNICS 23(2020):13. |
入库方式： OAI收割
来源：力学研究所
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