Study on the cooling effect of the parallel perforated ventilation subgrade in permafrost regions based on the numerical model.
The runway in permafrost regions has remarkable temperature sensitivity. Therefore, this paper puts forward to the parallel perforated ventilation subgrade. The reliability and validity of the finite element model of the runway with the parallel perforated ventilation subgrade are verified by compar...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2025-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0317916 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832540155799404544 |
|---|---|
| author | Xiaolan Liu Chuanwei Fu Xinglei Cheng |
| author_facet | Xiaolan Liu Chuanwei Fu Xinglei Cheng |
| author_sort | Xiaolan Liu |
| collection | DOAJ |
| description | The runway in permafrost regions has remarkable temperature sensitivity. Therefore, this paper puts forward to the parallel perforated ventilation subgrade. The reliability and validity of the finite element model of the runway with the parallel perforated ventilation subgrade are verified by comparing with the previous studies. And the cooling effect of the parallel perforated ventilation subgrade is analyzed. Results show that the parallel perforated ventilation subgrade has a significant cooling effect on the pavement and has little cooling effect in the natural ground. Compared with the non-ventilation subgrade, temperature time-history curves for the parallel perforated ventilation subgrade change periodically each year and are gradually lower with the growth of time. Temperature-depth curves for the parallel perforated ventilation subgrade change significantly at the insulation layer, the crushed rock layer, and the perforated ventilation. The air velocity and working time of the parallel perforated ventilation have no effect on the temperature of the surface layer, base layer, and subbase layer, have little effect on the temperature of the insulation layer, and have great effect on the temperature of the crushed rock layer and subgrade. This study provides scientific support for the design, construction, and maintenance of the runway in permafrost regions. |
| format | Article |
| id | doaj-art-00ccb236e56e4c5e93368f6fc0068404 |
| institution | Kabale University |
| issn | 1932-6203 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-00ccb236e56e4c5e93368f6fc00684042025-02-05T05:31:51ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01201e031791610.1371/journal.pone.0317916Study on the cooling effect of the parallel perforated ventilation subgrade in permafrost regions based on the numerical model.Xiaolan LiuChuanwei FuXinglei ChengThe runway in permafrost regions has remarkable temperature sensitivity. Therefore, this paper puts forward to the parallel perforated ventilation subgrade. The reliability and validity of the finite element model of the runway with the parallel perforated ventilation subgrade are verified by comparing with the previous studies. And the cooling effect of the parallel perforated ventilation subgrade is analyzed. Results show that the parallel perforated ventilation subgrade has a significant cooling effect on the pavement and has little cooling effect in the natural ground. Compared with the non-ventilation subgrade, temperature time-history curves for the parallel perforated ventilation subgrade change periodically each year and are gradually lower with the growth of time. Temperature-depth curves for the parallel perforated ventilation subgrade change significantly at the insulation layer, the crushed rock layer, and the perforated ventilation. The air velocity and working time of the parallel perforated ventilation have no effect on the temperature of the surface layer, base layer, and subbase layer, have little effect on the temperature of the insulation layer, and have great effect on the temperature of the crushed rock layer and subgrade. This study provides scientific support for the design, construction, and maintenance of the runway in permafrost regions.https://doi.org/10.1371/journal.pone.0317916 |
| spellingShingle | Xiaolan Liu Chuanwei Fu Xinglei Cheng Study on the cooling effect of the parallel perforated ventilation subgrade in permafrost regions based on the numerical model. PLoS ONE |
| title | Study on the cooling effect of the parallel perforated ventilation subgrade in permafrost regions based on the numerical model. |
| title_full | Study on the cooling effect of the parallel perforated ventilation subgrade in permafrost regions based on the numerical model. |
| title_fullStr | Study on the cooling effect of the parallel perforated ventilation subgrade in permafrost regions based on the numerical model. |
| title_full_unstemmed | Study on the cooling effect of the parallel perforated ventilation subgrade in permafrost regions based on the numerical model. |
| title_short | Study on the cooling effect of the parallel perforated ventilation subgrade in permafrost regions based on the numerical model. |
| title_sort | study on the cooling effect of the parallel perforated ventilation subgrade in permafrost regions based on the numerical model |
| url | https://doi.org/10.1371/journal.pone.0317916 |
| work_keys_str_mv | AT xiaolanliu studyonthecoolingeffectoftheparallelperforatedventilationsubgradeinpermafrostregionsbasedonthenumericalmodel AT chuanweifu studyonthecoolingeffectoftheparallelperforatedventilationsubgradeinpermafrostregionsbasedonthenumericalmodel AT xingleicheng studyonthecoolingeffectoftheparallelperforatedventilationsubgradeinpermafrostregionsbasedonthenumericalmodel |