Numerical Method for the Deformation Calculation of the Shallow Buried Tunnel Caused by the Excavation of Overlying Soil Based on Soil Rebounding Characteristics
文献类型：期刊论文
| 作者 | Li, Jian3; Li, Shichang2,3; Zhang, Yu1; Chen, Shanxiong3; Yu, Fei3; Dai, Zhangjun3; Li, Chaoxiong3 |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2022-07-25 |
| 卷号 | 10页码:17 |
| 关键词 | soil rebounding characteristics soil unloaded construction shallow buried tunnel numerical simulation method deformation calculation |
| DOI | 10.3389/feart.2022.872040 |
| 英文摘要 | In view of strict deformation control standards, it is important to calculate the shallow tunnel deformation caused by the unloading of overburdened soil for analyzing tunnel structure safety. Due to the obvious nonlinear characteristics and the significantly smaller rebound deformation of soil under unloading conditions, previous numerical calculation methods need to be improved and adapted to the soil deformation characteristics under unloading. Based on the above background, cyclic loading and unloading tests were carried out to study the deformation characteristics of soil under different loading levels, stress history, and unloading levels. Secondly, a unified modulus calculation model was established, especially for the unloading modulus, which considers the unloading stress history and current unloading stress level, and can provide the value of soil modulus in different states. The relationship between the unloading rebound modulus E-sc and the rebound modulus E-c0 used in the numerical simulation was studied. Finally, a set of numerical calculation and analysis methods for shallow tunnel deformation caused by overlying soil excavation based on its rebounding characteristics is proposed. The rationality of the method is verified by two examples, and is applied to a practical project. |
| 资助项目 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; [42172308] ; [2022331] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000890710900001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/38290]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhang, Yu |
| 作者单位 | 1.Sichuan Water Dev Grp Co Ltd, Chengdu, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Inst Rock & Soil Mech CAS, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jian,Li, Shichang,Zhang, Yu,et al. Numerical Method for the Deformation Calculation of the Shallow Buried Tunnel Caused by the Excavation of Overlying Soil Based on Soil Rebounding Characteristics[J]. FRONTIERS IN EARTH SCIENCE,2022,10:17. |
| APA | Li, Jian.,Li, Shichang.,Zhang, Yu.,Chen, Shanxiong.,Yu, Fei.,...&Li, Chaoxiong.(2022).Numerical Method for the Deformation Calculation of the Shallow Buried Tunnel Caused by the Excavation of Overlying Soil Based on Soil Rebounding Characteristics.FRONTIERS IN EARTH SCIENCE,10,17. |
| MLA | Li, Jian,et al."Numerical Method for the Deformation Calculation of the Shallow Buried Tunnel Caused by the Excavation of Overlying Soil Based on Soil Rebounding Characteristics".FRONTIERS IN EARTH SCIENCE 10(2022):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。