Enhancing tunnel cold resistance in cold regions with overlapping-tiles cold-proof wall
Tunnels in cold regions are susceptible to freeze damage. The overlapping-tiles cold-proof walls (OTCW) proposed in this study can effectively block cold airflow into the tunnel and mitigate freeze damage. The anti-freezing ability of OTCW was validated through model tests and numerical simulations,...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-10-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25010160 |
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| author | Ke Yin Rui Wang Licai Zhao Hafiz Muhammad Irfan Xingtong Wang Yinlei Wang |
| author_facet | Ke Yin Rui Wang Licai Zhao Hafiz Muhammad Irfan Xingtong Wang Yinlei Wang |
| author_sort | Ke Yin |
| collection | DOAJ |
| description | Tunnels in cold regions are susceptible to freeze damage. The overlapping-tiles cold-proof walls (OTCW) proposed in this study can effectively block cold airflow into the tunnel and mitigate freeze damage. The anti-freezing ability of OTCW was validated through model tests and numerical simulations, and the structural design was recommended based on the prevailing wind direction. The results indicate that OTCW effectively blocks cold airflow, with its blocking capacity increasing as the number of wallboards increases. When the angle between the wind direction and the tunnel's transverse is 30°, 45°, or 60°, the average wind speed at the tunnel entrance without a portal structure is 1.8, 2.8, and 3.3 m/s, respectively. OTCW with 1, 3, and 4 layers of wallboards completely blocks the cold airflow. When the wind direction angle is 75°, the wind speed without a portal structure is 3.6 m/s. OTCW with 7 layers of wallboards reduces the wind speed by 72.2 %. Under cold region meteorological conditions, significant low-temperature zones appear in the surrounding rock when no portal structure or open cut tunnel (OCT) is installed. When OTCW is set, most of the low-temperature zones disappear. The anti-freezing effect of OTCW is significant. |
| format | Article |
| id | doaj-art-1401de55bb9e41eb9ace94e42521879b |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-1401de55bb9e41eb9ace94e42521879b2025-08-20T03:34:29ZengElsevierCase Studies in Thermal Engineering2214-157X2025-10-017410675610.1016/j.csite.2025.106756Enhancing tunnel cold resistance in cold regions with overlapping-tiles cold-proof wallKe Yin0Rui Wang1Licai Zhao2Hafiz Muhammad Irfan3Xingtong Wang4Yinlei Wang5School of Civil Engineering, Chang'an University, Xi'an, 710061, ChinaSchool of Civil Engineering, Chang'an University, Xi'an, 710061, China; Corresponding author.China Railway 19th Bureau Group Third Engineering Co. LTD, Shenyang, 110136, ChinaSchool of Civil Engineering, Chang'an University, Xi'an, 710061, ChinaSchool of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an, 710043, ChinaSchool of Civil Engineering, Chang'an University, Xi'an, 710061, ChinaTunnels in cold regions are susceptible to freeze damage. The overlapping-tiles cold-proof walls (OTCW) proposed in this study can effectively block cold airflow into the tunnel and mitigate freeze damage. The anti-freezing ability of OTCW was validated through model tests and numerical simulations, and the structural design was recommended based on the prevailing wind direction. The results indicate that OTCW effectively blocks cold airflow, with its blocking capacity increasing as the number of wallboards increases. When the angle between the wind direction and the tunnel's transverse is 30°, 45°, or 60°, the average wind speed at the tunnel entrance without a portal structure is 1.8, 2.8, and 3.3 m/s, respectively. OTCW with 1, 3, and 4 layers of wallboards completely blocks the cold airflow. When the wind direction angle is 75°, the wind speed without a portal structure is 3.6 m/s. OTCW with 7 layers of wallboards reduces the wind speed by 72.2 %. Under cold region meteorological conditions, significant low-temperature zones appear in the surrounding rock when no portal structure or open cut tunnel (OCT) is installed. When OTCW is set, most of the low-temperature zones disappear. The anti-freezing effect of OTCW is significant.http://www.sciencedirect.com/science/article/pii/S2214157X25010160TunnelAnti-freezing measureOverlapping-tiles cold-proof wallModel testTemperature field |
| spellingShingle | Ke Yin Rui Wang Licai Zhao Hafiz Muhammad Irfan Xingtong Wang Yinlei Wang Enhancing tunnel cold resistance in cold regions with overlapping-tiles cold-proof wall Case Studies in Thermal Engineering Tunnel Anti-freezing measure Overlapping-tiles cold-proof wall Model test Temperature field |
| title | Enhancing tunnel cold resistance in cold regions with overlapping-tiles cold-proof wall |
| title_full | Enhancing tunnel cold resistance in cold regions with overlapping-tiles cold-proof wall |
| title_fullStr | Enhancing tunnel cold resistance in cold regions with overlapping-tiles cold-proof wall |
| title_full_unstemmed | Enhancing tunnel cold resistance in cold regions with overlapping-tiles cold-proof wall |
| title_short | Enhancing tunnel cold resistance in cold regions with overlapping-tiles cold-proof wall |
| title_sort | enhancing tunnel cold resistance in cold regions with overlapping tiles cold proof wall |
| topic | Tunnel Anti-freezing measure Overlapping-tiles cold-proof wall Model test Temperature field |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25010160 |
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