|
|
|
| Review and prospect of waterproofing of segment joints of shield tunnel with high hydraulic pressure |
| WANG Shimin, XIE Hongming
|
| Key Laboratory of Transportation Tunnel Engineering of the Ministry of Education, Southwest Jiaotong University, Chengdu 610031, Sichuan, China |
|
|
|
|
Abstract With the rapid development of underwater shield tunnel construction in China, the waterproof problem of segment joints is becoming more and more prominent, and the hydraulic pressure on shield tunnel is also increasing, which poses a severe challenge to the waterproof safety of the tunnel. The waterproofing of shield tunnel with high hydraulic pressure has gradually become a hot topic at home and abroad. Aiming at the possible problems in the design stage, construction stage and long-term operation stage of segment joint waterproofing of shield tunnel with high hydraulic pressure, the relevant important research at home and abroad were summarized, mainly including: material selection, section design, corner processing, arrangement of multi-channel sealing gasket, waterproof of bolt hole, numerical simulation and test analysis of sealing gasket, waterproof performance of sealing gasket under earthquake action and long-term durability evaluation of aging sealing gasket material. The existing problems and the research trend of related waterproof problems were discussed.
|
|
Published: 04 November 2020
|
|
|
|
|
|
|
|
