Study on the gasket durability in the segment joint of subsurface excavated fabricated section
The aging of rubber will cause changes in the mechanical properties of materials, which in turn will cause waterproof failure.The section from the starting point of Beijing Metro Line 6 to Jin'anqiao is the first fabricated surface excavated tunnel in our country.It is of great significance to...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Emergency Management Press
2021-04-01
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| Series: | 矿业科学学报 |
| Subjects: | |
| Online Access: | http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2021.02.007 |
| _version_ | 1797989695255216128 |
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| author | Dong Linwei Yang Zhiyong Jiang Yusheng Wang Zhenyong Wang Hao Sun Ziyue Qi Mingyu |
| author_facet | Dong Linwei Yang Zhiyong Jiang Yusheng Wang Zhenyong Wang Hao Sun Ziyue Qi Mingyu |
| author_sort | Dong Linwei |
| collection | DOAJ |
| description | The aging of rubber will cause changes in the mechanical properties of materials, which in turn will cause waterproof failure.The section from the starting point of Beijing Metro Line 6 to Jin'anqiao is the first fabricated surface excavated tunnel in our country.It is of great significance to study the aging performance of the gaskets at the joints.The tunnel uses segments as the secondary lining structure, and EPDM gaskets as the waterproof material at the segment joints.In order to check whether the waterproof of the joints meets the durability requirements, an accelerated aging test was carried out on the rubber material of the gasket according to time-temperature equivalence principle, which predicts the service life of the rubber material.Due to the cumbersome calculation process of life prediction, the corresponding program was compiled to solve the problem of repeated trial calculation of parameters in the data processing.In addition, a numerical simulation of the stress of segment gaskets was carried out, and the influence of aging on the waterproof of the gasket was analyzed.It was pointed out that the designed water pressure of the gasket was increased to at least 1.75 times of the original one. |
| first_indexed | 2024-04-11T08:24:34Z |
| format | Article |
| id | doaj.art-4efcf2edcbd94403869bdfdb294c757a |
| institution | Directory Open Access Journal |
| issn | 2096-2193 |
| language | English |
| last_indexed | 2024-04-11T08:24:34Z |
| publishDate | 2021-04-01 |
| publisher | Emergency Management Press |
| record_format | Article |
| series | 矿业科学学报 |
| spelling | doaj.art-4efcf2edcbd94403869bdfdb294c757a2022-12-22T04:34:49ZengEmergency Management Press矿业科学学报2096-21932021-04-016219620310.19606/j.cnki.jmst.2021.02.00720210207Study on the gasket durability in the segment joint of subsurface excavated fabricated sectionDong Linwei0Yang Zhiyong1Jiang Yusheng2Wang Zhenyong3Wang Hao4Sun Ziyue5Qi Mingyu6School of Mechanics and Civil Engineering, China University of Mining & Technology-Beijing, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining & Technology-Beijing, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining & Technology-Beijing, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining & Technology-Beijing, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining & Technology-Beijing, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining & Technology-Beijing, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining & Technology-Beijing, Beijing 100083, ChinaThe aging of rubber will cause changes in the mechanical properties of materials, which in turn will cause waterproof failure.The section from the starting point of Beijing Metro Line 6 to Jin'anqiao is the first fabricated surface excavated tunnel in our country.It is of great significance to study the aging performance of the gaskets at the joints.The tunnel uses segments as the secondary lining structure, and EPDM gaskets as the waterproof material at the segment joints.In order to check whether the waterproof of the joints meets the durability requirements, an accelerated aging test was carried out on the rubber material of the gasket according to time-temperature equivalence principle, which predicts the service life of the rubber material.Due to the cumbersome calculation process of life prediction, the corresponding program was compiled to solve the problem of repeated trial calculation of parameters in the data processing.In addition, a numerical simulation of the stress of segment gaskets was carried out, and the influence of aging on the waterproof of the gasket was analyzed.It was pointed out that the designed water pressure of the gasket was increased to at least 1.75 times of the original one.http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2021.02.007gasketservice lifeaccelerated aging testcompression setjoint waterproof |
| spellingShingle | Dong Linwei Yang Zhiyong Jiang Yusheng Wang Zhenyong Wang Hao Sun Ziyue Qi Mingyu Study on the gasket durability in the segment joint of subsurface excavated fabricated section 矿业科学学报 gasket service life accelerated aging test compression set joint waterproof |
| title | Study on the gasket durability in the segment joint of subsurface excavated fabricated section |
| title_full | Study on the gasket durability in the segment joint of subsurface excavated fabricated section |
| title_fullStr | Study on the gasket durability in the segment joint of subsurface excavated fabricated section |
| title_full_unstemmed | Study on the gasket durability in the segment joint of subsurface excavated fabricated section |
| title_short | Study on the gasket durability in the segment joint of subsurface excavated fabricated section |
| title_sort | study on the gasket durability in the segment joint of subsurface excavated fabricated section |
| topic | gasket service life accelerated aging test compression set joint waterproof |
| url | http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2021.02.007 |
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