Optimum Selection of Structure Form and Materials for Highway Tunnel Insulation Layers
Abstract At present, the design of tunnel insulation layer in cold area mostly depends on engineering analogy, and the rationality of the design cannot be guaranteed. Therefore, in this study, on the basis of an ANSYS finite element analysis model, boundary conditions and calculation parameters are...
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crioppubl:10.1088/1755-1315/587/1/012015 2024-06-02T08:13:00+00:00 Optimum Selection of Structure Form and Materials for Highway Tunnel Insulation Layers Li, Borong Han, Changling Fu, Zhipeng 2020 http://dx.doi.org/10.1088/1755-1315/587/1/012015 https://iopscience.iop.org/article/10.1088/1755-1315/587/1/012015/pdf https://iopscience.iop.org/article/10.1088/1755-1315/587/1/012015 unknown IOP Publishing http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining IOP Conference Series: Earth and Environmental Science volume 587, issue 1, page 012015 ISSN 1755-1307 1755-1315 journal-article 2020 crioppubl https://doi.org/10.1088/1755-1315/587/1/012015 2024-05-07T13:56:26Z Abstract At present, the design of tunnel insulation layer in cold area mostly depends on engineering analogy, and the rationality of the design cannot be guaranteed. Therefore, in this study, on the basis of an ANSYS finite element analysis model, boundary conditions and calculation parameters are determined for the Jiangluling Tunnel in the cold region of Tibet, China. An analysis of the different laying methods of the thermal insulation layer between the permafrost section and the non-permafrost section is conducted, along with a comprehensive evaluation of several commonly used thermal insulation materials. Based on the results, the double layering method is recommended for the thermal insulation layer of the permafrost section. The commencement of the freeze–thaw cycle can be delayed by laying the insulation layer in the non-frozen soil section, and laying outside the wall is usually preferred. When the off-wall laying is not possible, the surface laying method is preferred. Article in Journal/Newspaper permafrost IOP Publishing IOP Conference Series: Earth and Environmental Science 587 1 012015 |
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Abstract At present, the design of tunnel insulation layer in cold area mostly depends on engineering analogy, and the rationality of the design cannot be guaranteed. Therefore, in this study, on the basis of an ANSYS finite element analysis model, boundary conditions and calculation parameters are determined for the Jiangluling Tunnel in the cold region of Tibet, China. An analysis of the different laying methods of the thermal insulation layer between the permafrost section and the non-permafrost section is conducted, along with a comprehensive evaluation of several commonly used thermal insulation materials. Based on the results, the double layering method is recommended for the thermal insulation layer of the permafrost section. The commencement of the freeze–thaw cycle can be delayed by laying the insulation layer in the non-frozen soil section, and laying outside the wall is usually preferred. When the off-wall laying is not possible, the surface laying method is preferred. |
format |
Article in Journal/Newspaper |
author |
Li, Borong Han, Changling Fu, Zhipeng |
spellingShingle |
Li, Borong Han, Changling Fu, Zhipeng Optimum Selection of Structure Form and Materials for Highway Tunnel Insulation Layers |
author_facet |
Li, Borong Han, Changling Fu, Zhipeng |
author_sort |
Li, Borong |
title |
Optimum Selection of Structure Form and Materials for Highway Tunnel Insulation Layers |
title_short |
Optimum Selection of Structure Form and Materials for Highway Tunnel Insulation Layers |
title_full |
Optimum Selection of Structure Form and Materials for Highway Tunnel Insulation Layers |
title_fullStr |
Optimum Selection of Structure Form and Materials for Highway Tunnel Insulation Layers |
title_full_unstemmed |
Optimum Selection of Structure Form and Materials for Highway Tunnel Insulation Layers |
title_sort |
optimum selection of structure form and materials for highway tunnel insulation layers |
publisher |
IOP Publishing |
publishDate |
2020 |
url |
http://dx.doi.org/10.1088/1755-1315/587/1/012015 https://iopscience.iop.org/article/10.1088/1755-1315/587/1/012015/pdf https://iopscience.iop.org/article/10.1088/1755-1315/587/1/012015 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
IOP Conference Series: Earth and Environmental Science volume 587, issue 1, page 012015 ISSN 1755-1307 1755-1315 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1755-1315/587/1/012015 |
container_title |
IOP Conference Series: Earth and Environmental Science |
container_volume |
587 |
container_issue |
1 |
container_start_page |
012015 |
_version_ |
1800759639475748864 |