| Numerical analysis for the role of soil properties to the load transfer in clay foundation due to the traffic load of the metro tunnel | |
Yang J1; Yin ZY1; Liu XF2; Gao FP(高福平)3,4
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| Corresponding Author | Yin, Zhen-Yu([email protected]) |
| Source Publication | TRANSPORTATION GEOTECHNICS
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| 2020-06-01 | |
| Volume | 23Pages:13 |
| ISSN | 2214-3912 |
| Abstract | 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. |
| Keyword | Clay Anisotropy Bounding surface Traffic load Finite difference method |
| DOI | 10.1016/j.trgeo.2020.100336 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000531595800002 |
| WOS Keyword | DYNAMIC-RESPONSE ; MECHANICAL-BEHAVIOR ; CONSTITUTIVE MODEL ; INDUCED SETTLEMENT ; SATURATED CLAY ; DEFORMATION ; PARAMETERS ; SAND |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Civil ; Engineering, Geological |
| Funding Project | 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 |
| Funding Organization | 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 |
| Classification | 二类 |
| Ranking | 4 |
| Contributor | Yin, Zhen-Yu |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/82010 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China; 2.Southwest Jiaotong Univ, Sch Civil Engn, Key Lab High Speed Railway Engn, Minist Educ, Chengdu 610031, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 4.Univ Chinese Acad Sci, China Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation 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.Rp_Au:Yin, Zhen-Yu |
| 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. |
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| Jp2020140.pdf（2071KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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