In the Gangwon province, severe freezing damage to road tunnels are occurred due to freezing condition such as snowfall, cold waves and icing. As a result, serious damage occurs on the lining and road surface of the tunnel entrance and exit. Therefore, it is necessary to develop appropriate mitigation methods to protect damage to people and property by freezing. In this paper, we introduce that the trend of research for reducing the freezing damage and the required performance to be secured for the maintenance of road tunnels in cold region and the future research plans.

• 안재욱(한국시설안전공단) | An, Jai Wook
• 박경한(한국시설안전공단) | Park, Kyung Han
• 성주현(한국시설안전공단) | Sung, Joo Hyun