Thermo-hydro-mechanical behaviour of energy tunnel in unsaturated soils
文献类型：期刊论文
| 作者 | Liu, Jinquan1,2; Zhou, Chao1; Tang, Anh Minh3 |
| 刊名 | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 153页码:17 |
| 关键词 | Unsaturated soil Energy Geotechnics Temperature Effects |
| ISSN号 | 0886-7798 |
| DOI | 10.1016/j.tust.2024.106012 |
| 英文摘要 | Soils surrounding energy tunnels are often unsaturated, particularly in areas with a low water table. All studies of the mechanical behaviour of energy tunnels focused on saturated or dry soils. Through numerical simulations using a coupled thermo-hydro-mechanical model for unsaturated soils, this study aims to improve the understanding of the interactions between energy tunnels and unsaturated ground. The influences of water table position and soil type on the mechanical behaviour of energy tunnels were investigated. Results show that the thermally-induced lining convergence of energy tunnels does not change much with the water table position. Nevertheless, the other mechanical responses (e.g., settlements of ground and tunnel and lining stress changes) highly depend on the water table position. These mechanical responses are more significant when the water table is higher than the tunnel center, except for the larger settlements at a lower water table in clay. Furthermore, the above responses are underestimated if soils above the water table are assumed to be completely dry. The degree of underestimation is most significant for the clay, followed by silt and sand, e.g., a maximum of 54%, 23% and 10% in the change of circumferential stress, respectively. These results highlight that the unsaturated soil model should be used to evaluate the thermo-hydro-mechanical responses of energy tunnels in unsaturated soils, particularly for the clay ground. |
| 资助项目 | HKSAR Research Grants Council (RGC)[15200120] ; PROCORE-France/Hong Kong Joint Research Scheme[F-PolyU506/22] ; PROCORE-France/Hong Kong Joint Research Scheme[49456RH] ; Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering[JBGS2401] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001301881600001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42331]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhou, Chao |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China 3.Univ Gustave Eiffel, Navier, CNRS, Ecole Ponts ParisTech, Marne La Vallee, France |
| 推荐引用方式 GB/T 7714 | Liu, Jinquan,Zhou, Chao,Tang, Anh Minh. Thermo-hydro-mechanical behaviour of energy tunnel in unsaturated soils[J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,2024,153:17. |
| APA | Liu, Jinquan,Zhou, Chao,&Tang, Anh Minh.(2024).Thermo-hydro-mechanical behaviour of energy tunnel in unsaturated soils.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,153,17. |
| MLA | Liu, Jinquan,et al."Thermo-hydro-mechanical behaviour of energy tunnel in unsaturated soils".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 153(2024):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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