Investigation of Snow Deposition on the Railway Cuttings During the Snowdrift
This study confirmed a mixture multiphase model based on the Euler–Euler method to predict snow deposition in road cuttings. A scaled model experiment was conducted in the Mayitas region of Xinjiang to verify the numerical simulation accuracy, which revealed a good agreement. Regarding the formation...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-06-01
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| Series: | Frontiers in Earth Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.857981/full |
| _version_ | 1811336403399737344 |
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| author | Wenyong Ma Wenyong Ma Wenyong Ma Sai Li Yuanchun Sun Jianglong Li Feiqiang Li |
| author_facet | Wenyong Ma Wenyong Ma Wenyong Ma Sai Li Yuanchun Sun Jianglong Li Feiqiang Li |
| author_sort | Wenyong Ma |
| collection | DOAJ |
| description | This study confirmed a mixture multiphase model based on the Euler–Euler method to predict snow deposition in road cuttings. A scaled model experiment was conducted in the Mayitas region of Xinjiang to verify the numerical simulation accuracy, which revealed a good agreement. Regarding the formation mechanism of drifting snow disasters in road cuttings, the wind speed in the simulation results was analyzed in detail. The results indicated that the low-wind speed area is positively correlated with the vortex size and that snow deposition occurs between the vortex separation point and vortex reattachment point. The appearance and disappearance of the secondary vortex can divide the snow cover process into three stages, and the second phase after secondary vortex emergence represents the period of a rapid increase in the snow thickness. Snow cornices are the leading emergence cause of secondary vortex. The related critical snow storage capacity should also be considered to measure the snow storage capacity of road cutting types. |
| first_indexed | 2024-04-13T17:38:59Z |
| format | Article |
| id | doaj.art-aea42c42bf8e4025a711f668908e788c |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-13T17:38:59Z |
| publishDate | 2022-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-aea42c42bf8e4025a711f668908e788c2022-12-22T02:37:15ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632022-06-011010.3389/feart.2022.857981857981Investigation of Snow Deposition on the Railway Cuttings During the SnowdriftWenyong Ma0Wenyong Ma1Wenyong Ma2Sai Li3Yuanchun Sun4Jianglong Li5Feiqiang Li6State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang, ChinaSchool of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, ChinaInnovation Center for Wind Engineering and Wind Energy Technology of Hebei Province, Shijiazhuang, ChinaSchool of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, ChinaChina Railway Design Corporation, Tianjin, ChinaSchool of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, ChinaSchool of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, ChinaThis study confirmed a mixture multiphase model based on the Euler–Euler method to predict snow deposition in road cuttings. A scaled model experiment was conducted in the Mayitas region of Xinjiang to verify the numerical simulation accuracy, which revealed a good agreement. Regarding the formation mechanism of drifting snow disasters in road cuttings, the wind speed in the simulation results was analyzed in detail. The results indicated that the low-wind speed area is positively correlated with the vortex size and that snow deposition occurs between the vortex separation point and vortex reattachment point. The appearance and disappearance of the secondary vortex can divide the snow cover process into three stages, and the second phase after secondary vortex emergence represents the period of a rapid increase in the snow thickness. Snow cornices are the leading emergence cause of secondary vortex. The related critical snow storage capacity should also be considered to measure the snow storage capacity of road cutting types.https://www.frontiersin.org/articles/10.3389/feart.2022.857981/fullroad cuttingnumerical simulationsnow evolution processsnowdrift disaster mechanismEuler-Euler method |
| spellingShingle | Wenyong Ma Wenyong Ma Wenyong Ma Sai Li Yuanchun Sun Jianglong Li Feiqiang Li Investigation of Snow Deposition on the Railway Cuttings During the Snowdrift Frontiers in Earth Science road cutting numerical simulation snow evolution process snowdrift disaster mechanism Euler-Euler method |
| title | Investigation of Snow Deposition on the Railway Cuttings During the Snowdrift |
| title_full | Investigation of Snow Deposition on the Railway Cuttings During the Snowdrift |
| title_fullStr | Investigation of Snow Deposition on the Railway Cuttings During the Snowdrift |
| title_full_unstemmed | Investigation of Snow Deposition on the Railway Cuttings During the Snowdrift |
| title_short | Investigation of Snow Deposition on the Railway Cuttings During the Snowdrift |
| title_sort | investigation of snow deposition on the railway cuttings during the snowdrift |
| topic | road cutting numerical simulation snow evolution process snowdrift disaster mechanism Euler-Euler method |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.857981/full |
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