A new off-wall insulation liner for high-speed railway tunnels in cold regions

This paper has designed a novel off-wall insulation liner, aiming to prevent severe frost damages for the high-speed railway tunnel in cold regions. In terms of composition, the double-layer steel corrugated plates of the liner not only prevent the block falling and water intrusion of cold-region tu...

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Autores principales:	Guangyao Cui, Jianfei Ma, Libin Wang, Xuelai Wang, Daoyuan Wang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Off-wall insulation liner Frost damages High-speed railway tunnels Cold regions Field investigation Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/c3ac84d177b14e438b3e3dd5ab8d2b1e
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id	oai:doaj.org-article:c3ac84d177b14e438b3e3dd5ab8d2b1e
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spelling	oai:doaj.org-article:c3ac84d177b14e438b3e3dd5ab8d2b1e2021-11-20T05:06:10ZA new off-wall insulation liner for high-speed railway tunnels in cold regions2214-157X10.1016/j.csite.2021.101652https://doaj.org/article/c3ac84d177b14e438b3e3dd5ab8d2b1e2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2214157X21008157https://doaj.org/toc/2214-157XThis paper has designed a novel off-wall insulation liner, aiming to prevent severe frost damages for the high-speed railway tunnel in cold regions. In terms of composition, the double-layer steel corrugated plates of the liner not only prevent the block falling and water intrusion of cold-region tunnels but prolong the durability and effectiveness of thermal insulation materials. Besides, the quick-construction technology for the off-wall insulation liner was derived in the present study, and it exhibits excellent construction efficiency, great economic and social benefits in the high-speed railway tunnel. Concerning the insulation capacity, the double insulation layers (polyurethane foam and air) perform the dramatical coldness-blocking effect, the freezing line moves forward from 0.48m-deep surrounding rock to the lining surface. The four-year field test has proved the effectiveness and insulation capacity of the off-wall tunnel, the severe frost damages in the Wufengshan tunnel were successfully eliminated. Compared with existing coldproof measures, the off-wall insulation liner in this paper exhibits excellent insulation capacity, high construction efficiency, and excellent economic benefits, it could be applied in the high-speed railway tunnels with high-altitude or extremely low temperatures.Guangyao CuiJianfei MaLibin WangXuelai WangDaoyuan WangElsevierarticleOff-wall insulation linerFrost damagesHigh-speed railway tunnelsCold regionsField investigationEngineering (General). Civil engineering (General)TA1-2040ENCase Studies in Thermal Engineering, Vol 28, Iss , Pp 101652- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Off-wall insulation liner Frost damages High-speed railway tunnels Cold regions Field investigation Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Off-wall insulation liner Frost damages High-speed railway tunnels Cold regions Field investigation Engineering (General). Civil engineering (General) TA1-2040 Guangyao Cui Jianfei Ma Libin Wang Xuelai Wang Daoyuan Wang A new off-wall insulation liner for high-speed railway tunnels in cold regions
description	This paper has designed a novel off-wall insulation liner, aiming to prevent severe frost damages for the high-speed railway tunnel in cold regions. In terms of composition, the double-layer steel corrugated plates of the liner not only prevent the block falling and water intrusion of cold-region tunnels but prolong the durability and effectiveness of thermal insulation materials. Besides, the quick-construction technology for the off-wall insulation liner was derived in the present study, and it exhibits excellent construction efficiency, great economic and social benefits in the high-speed railway tunnel. Concerning the insulation capacity, the double insulation layers (polyurethane foam and air) perform the dramatical coldness-blocking effect, the freezing line moves forward from 0.48m-deep surrounding rock to the lining surface. The four-year field test has proved the effectiveness and insulation capacity of the off-wall tunnel, the severe frost damages in the Wufengshan tunnel were successfully eliminated. Compared with existing coldproof measures, the off-wall insulation liner in this paper exhibits excellent insulation capacity, high construction efficiency, and excellent economic benefits, it could be applied in the high-speed railway tunnels with high-altitude or extremely low temperatures.
format	article
author	Guangyao Cui Jianfei Ma Libin Wang Xuelai Wang Daoyuan Wang
author_facet	Guangyao Cui Jianfei Ma Libin Wang Xuelai Wang Daoyuan Wang
author_sort	Guangyao Cui
title	A new off-wall insulation liner for high-speed railway tunnels in cold regions
title_short	A new off-wall insulation liner for high-speed railway tunnels in cold regions
title_full	A new off-wall insulation liner for high-speed railway tunnels in cold regions
title_fullStr	A new off-wall insulation liner for high-speed railway tunnels in cold regions
title_full_unstemmed	A new off-wall insulation liner for high-speed railway tunnels in cold regions
title_sort	new off-wall insulation liner for high-speed railway tunnels in cold regions
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/c3ac84d177b14e438b3e3dd5ab8d2b1e
work_keys_str_mv	AT guangyaocui anewoffwallinsulationlinerforhighspeedrailwaytunnelsincoldregions AT jianfeima anewoffwallinsulationlinerforhighspeedrailwaytunnelsincoldregions AT libinwang anewoffwallinsulationlinerforhighspeedrailwaytunnelsincoldregions AT xuelaiwang anewoffwallinsulationlinerforhighspeedrailwaytunnelsincoldregions AT daoyuanwang anewoffwallinsulationlinerforhighspeedrailwaytunnelsincoldregions AT guangyaocui newoffwallinsulationlinerforhighspeedrailwaytunnelsincoldregions AT jianfeima newoffwallinsulationlinerforhighspeedrailwaytunnelsincoldregions AT libinwang newoffwallinsulationlinerforhighspeedrailwaytunnelsincoldregions AT xuelaiwang newoffwallinsulationlinerforhighspeedrailwaytunnelsincoldregions AT daoyuanwang newoffwallinsulationlinerforhighspeedrailwaytunnelsincoldregions
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A new off-wall insulation liner for high-speed railway tunnels in cold regions

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