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http://dx.doi.org/10.9711/KTAJ.2018.20.6.957

Classification of cold regions and analysis of the freeze-thaw repetition cycle based on heat transfer quantity by freezing test  

An, Jai-Wook (Research Institute for Infrastructure Performance, Korea Infrastructure Safety Corporation)
Seo, Jeong-Eun (Research Institute for Infrastructure Performance, Korea Infrastructure Safety Corporation)
Jung, Min-Hyung (Research Institute for Infrastructure Performance, Korea Infrastructure Safety Corporation)
Seong, Joo-Hyun (Research Institute for Infrastructure Performance, Korea Infrastructure Safety Corporation)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.20, no.6, 2018 , pp. 957-972 More about this Journal
Abstract
Tunnels constructed in cold regions can cause serious defects such as cracks and leaks due to external temperature changes in the portals and vents. In order to prevent the freezing damage of the tunnel, appropriate measures should be applied to the section where the freeze damage is concerned. However, the specific criteria and contents for judging whether or not the anti-freeze measures are applied are not presented. In this study, the laboratory freezing tests on the temperature changes of the concrete specimens under freezing conditions were carried out. And the freeze-thaw repetition cycle (F), which can judge the possibility of freezing damage, were presented based on the heat transfer quantity (W) by experimental results of case studies. Also, we propose a classification of cold regions considering the climatic characteristics of Korea for using it to efficient design and maintenance.
Keywords
Cold regions; Heat transfer quantity; Freeze and thaw repetition cycle; Maintenance;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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