Thermal Conductivity of a Gravel Layer of a Road
Thermal resistance of the structural layers of a road is one of the important parameters that determine the choice of technical solutions of road design in the permafrost area. The purpose of this research is a quantitative assessment of the influence of the extent to which the pores in a gravel bed...
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2023
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Online Access: | https://doi.org/10.1051/e3sconf/202337103042 https://doaj.org/article/263601f523604f9ca45fe11247310568 |
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ftdoajarticles:oai:doaj.org/article:263601f523604f9ca45fe11247310568 2023-05-15T16:37:35+02:00 Thermal Conductivity of a Gravel Layer of a Road Galkin Aleksandr Pankov Vladimir Zhirkova Elizaveta 2023-01-01T00:00:00Z https://doi.org/10.1051/e3sconf/202337103042 https://doaj.org/article/263601f523604f9ca45fe11247310568 EN FR eng fre EDP Sciences https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/08/e3sconf_afe2023_03042.pdf https://doaj.org/toc/2267-1242 2267-1242 doi:10.1051/e3sconf/202337103042 https://doaj.org/article/263601f523604f9ca45fe11247310568 E3S Web of Conferences, Vol 371, p 03042 (2023) Environmental sciences GE1-350 article 2023 ftdoajarticles https://doi.org/10.1051/e3sconf/202337103042 2023-03-12T01:32:04Z Thermal resistance of the structural layers of a road is one of the important parameters that determine the choice of technical solutions of road design in the permafrost area. The purpose of this research is a quantitative assessment of the influence of the extent to which the pores in a gravel bedding are filled with ice or sand on the thermal conductivity of an ice-gravel or sand-gravel mixture. Lichtenecker formula was used to calculate the thermal conductivity coefficient of a three-component mixture. Different levels of ice content and moisture levels ofthe sand in the pores were considered. It was shown that the thermal resistance of the road structure can change significantly depending on the choice of the filler material. This allows to regulate the thermal regime of the road without adding new structural layers. The results of the calculations are presented as 2D and 3D charts to assess the influence of the filler material and the extent to which the pores are filled on the thermal conductivity coefficient of the mixture. The charts allow to see the possible changes in thermal conductivity coefficient of the structure and make a correct decision regarding the technologies to be used in construction. For example, to decide on the necessity to use a special thermal protection layer in the road structure. Article in Journal/Newspaper Ice permafrost Directory of Open Access Journals: DOAJ Articles E3S Web of Conferences 371 03042 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English French |
topic |
Environmental sciences GE1-350 |
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Environmental sciences GE1-350 Galkin Aleksandr Pankov Vladimir Zhirkova Elizaveta Thermal Conductivity of a Gravel Layer of a Road |
topic_facet |
Environmental sciences GE1-350 |
description |
Thermal resistance of the structural layers of a road is one of the important parameters that determine the choice of technical solutions of road design in the permafrost area. The purpose of this research is a quantitative assessment of the influence of the extent to which the pores in a gravel bedding are filled with ice or sand on the thermal conductivity of an ice-gravel or sand-gravel mixture. Lichtenecker formula was used to calculate the thermal conductivity coefficient of a three-component mixture. Different levels of ice content and moisture levels ofthe sand in the pores were considered. It was shown that the thermal resistance of the road structure can change significantly depending on the choice of the filler material. This allows to regulate the thermal regime of the road without adding new structural layers. The results of the calculations are presented as 2D and 3D charts to assess the influence of the filler material and the extent to which the pores are filled on the thermal conductivity coefficient of the mixture. The charts allow to see the possible changes in thermal conductivity coefficient of the structure and make a correct decision regarding the technologies to be used in construction. For example, to decide on the necessity to use a special thermal protection layer in the road structure. |
format |
Article in Journal/Newspaper |
author |
Galkin Aleksandr Pankov Vladimir Zhirkova Elizaveta |
author_facet |
Galkin Aleksandr Pankov Vladimir Zhirkova Elizaveta |
author_sort |
Galkin Aleksandr |
title |
Thermal Conductivity of a Gravel Layer of a Road |
title_short |
Thermal Conductivity of a Gravel Layer of a Road |
title_full |
Thermal Conductivity of a Gravel Layer of a Road |
title_fullStr |
Thermal Conductivity of a Gravel Layer of a Road |
title_full_unstemmed |
Thermal Conductivity of a Gravel Layer of a Road |
title_sort |
thermal conductivity of a gravel layer of a road |
publisher |
EDP Sciences |
publishDate |
2023 |
url |
https://doi.org/10.1051/e3sconf/202337103042 https://doaj.org/article/263601f523604f9ca45fe11247310568 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
E3S Web of Conferences, Vol 371, p 03042 (2023) |
op_relation |
https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/08/e3sconf_afe2023_03042.pdf https://doaj.org/toc/2267-1242 2267-1242 doi:10.1051/e3sconf/202337103042 https://doaj.org/article/263601f523604f9ca45fe11247310568 |
op_doi |
https://doi.org/10.1051/e3sconf/202337103042 |
container_title |
E3S Web of Conferences |
container_volume |
371 |
container_start_page |
03042 |
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1766027880589950976 |