Direct shear test on the interface between tunnel linings
文献类型：期刊论文
| 作者 | Zhao, Wusheng1,2; Zhou, Shuai1,2; Xie, Peiyao1,2; Qin, Changkun1,2; Gao, Hou1,2; Chen, Weizhong1,2 |
| 刊名 | STRUCTURAL CONCRETE
 |
| 出版日期 | 2024-12-18 |
| 页码 | 17 |
| 关键词 | composite lining concrete-concrete interface direct shear roughness waterproof layer |
| ISSN号 | 1464-4177 |
| DOI | 10.1002/suco.202401135 |
| 英文摘要 | The lining interfaces of composite linings typically include two interfaces: the primary lining-secondary lining interface and the primary lining-waterproof layer-secondary lining interface. These interfaces are observed in Chinese highway tunnels with weak surrounding rock. In order to ascertain more effective measures to accommodate the deformations between tunnel linings, it is necessary to investigate the shear resistance performance of the interfaces and the factors that influence this performance. The samples are classified according to the presence or absence of waterproof layers, cohesive interfaces, and rough interfaces. Subsequently, direct shear tests are conducted under constant normal stress. The shear rate is 1 mm/min, and the normal stress is 0.5, 1.0, and 2.0 MPa, respectively. The results of the tests demonstrate that the shear properties are influenced by the normal stress, the waterproof layer, the cohesive interface and the rough interface. The shear resistance performance of the lining interface in the absence of a waterproof layer is observed to be superior to that observed with a waterproof layer. The normal compressive stiffness range for the primary lining-secondary lining interface is observed to be between 0.69 and 3.17 GPa, with a pre-peak shear stiffness range of 0.12-1.88 GPa. The effective cohesion range is found to be between 0 and 0.29 MPa, while the internal friction angle range is observed to be between 22.62 degrees and 29.43 degrees. In contrast, the normal compressive stiffness for the primary lining-waterproof layer-secondary lining interface is observed to be within the range of 1.24-9.78 GPa, the pre-peak shear stiffness range is 0.45-39.68 GPa, the effective cohesion range is 0.07-1.98 MPa, and the internal friction angle range is 34.92 degrees-52.24 degrees. In conclusion, this investigation presents a number of potential measures that could be employed to enhance the shear resistance performance of tunnel lining interfaces. Furthermore, it furnishes a set of parameters derived from the test results that could serve as a foundation for subsequent research and design endeavors. |
| 资助项目 | National Natural Science Foundation of China ; Natural Science Foundation of Hubei Province, China[2024AFA072] ; Youth Innovation Promotion Association CAS[2022332] ; [42477208] ; [52079134] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001378994500001 |
| 出版者 | ERNST & SOHN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43463]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhao, Wusheng |
| 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, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Wusheng,Zhou, Shuai,Xie, Peiyao,et al. Direct shear test on the interface between tunnel linings[J]. STRUCTURAL CONCRETE,2024:17. |
| APA | Zhao, Wusheng,Zhou, Shuai,Xie, Peiyao,Qin, Changkun,Gao, Hou,&Chen, Weizhong.(2024).Direct shear test on the interface between tunnel linings.STRUCTURAL CONCRETE,17. |
| MLA | Zhao, Wusheng,et al."Direct shear test on the interface between tunnel linings".STRUCTURAL CONCRETE (2024):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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