关键词: 隧道工程；公路隧道；遮光棚；照明；经济性

Abstract: In order to reduce the energy consumption and project cost during the tunnel operation, the visual adaptation curve was used to determine whether or not to erect the tunnel shading shed. The luminance mathematical model and the required luminous flux difference model of single tunnel and adjacent tunnel were established, and the difference of lighting power between them was calculated based on the difference model. Taking the construction cost of the shading shed and its subsequent operation and maintenance cost into account, the lighting economy of setting shading shed was analyzed and the conditions of setting shading shed are proposed. The research shows that if only the construction cost of shading shed is considered, when the saved luminous flux cost of lamps is greater than or equal to the construction cost, the establishment of shading shed is more lighting economic; if the construction and subsequent maintenance costs of the shading shed are considered, when the sum of the saved luminous flux cost, electricity cost and maintenance cost of the lamps is greater than or equal to the construction cost and maintenance cost of the shading shed, the establishment of the shading shed is more lighting economic.

Key words: tunnel engineering; highway tunnel; shading shed; lighting; economy