| 摘要 |
PURPOSE: A freezing prevention device of a tunnel entrance and a construction method thereof are provided to prevent freezing on a road at all times and to obtain an environmentally-friendly property by not wasting energy. CONSTITUTION: A freezing prevention device (30) of a tunnel entrance comprises a heat absorption unit, a heating unit, and a circulation pump. The heat absorption unit is arranged in a drainage pipe (20) of a tunnel (10) and absorbs heat of leachate discharged through the drainage pipe. The heat absorption unit is formed in a zigzag shape in order to increase a heat transmission area. The heating unit prevents freezing of a road surface at the tunnel entrance by the flow of freezing prevention water, which absorbs the heat of the leachate. The circulation pump circulates the freezing prevention water between the heat absorption unit and the heating unit. |
