| With the advancement of urbanization,the transportation is becoming more and more convenient.As one of the important components of the transportation system,tunnels play an important role in transportation.However,the environment in the tunnel is special,and there are many problems in its lighting,such as high energy consumption,insufficient brightness,prominent glare,and significant black-and-white hole effect,etc.,which seriously affect driving safety.How to balance the safety,comfort and cost of the light environment in the tunnel has become a A research hotspot for tunnel construction builders and management departments.Aiming at the problem of highway tunnel lighting,The Fengdu Tunnel of Xingyi Ring Expressway in Guizhou proposed a new solution: applying long afterglow luminescent materials to tunnel lighting.Based on this project,this paper studies its light environment by combining theoretical basis,experimental research,simulation analysis and comprehensive evaluation,trying to optimize the lighting scheme,improve the efficiency and safety of lighting,and the results can be used for highway It is a reference in the field of tunnel lighting,and also provides a certain theoretical supplement for the application of new luminous coatings.Research indicates:(1)Using Yuanfang LGM-200 B lighting glare measuring instrument to measure and analyze the light environment quality of 5 highway tunnels with and without longlasting luminescent material lighting systems,it was found that: for tunnels with longlasting luminescent material lighting systems,the lighting in The brightness difference ratios of the entrance section and the exit section are reduced by 11.8% and 14.2%respectively,indicating that the use of long-lasting luminescent materials can effectively reduce the "black and white hole effect" at the entrance,and the brightness uniformity of the lighting transition section and the middle section is also significant.improve.(2)Use DIALux software to establish a simulation model,and analyze the influence of the installation angle of lamps,the coating height of long-lasting luminescent materials,and the reflectivity of long-lasting luminescent materials on illuminance,illuminance uniformity,glare,and the visual distance of small objects.With the increase of the installation angle of the lamp(the installation angle of the lamp refers to the angle between the direction of light irradiation and the vertical line between the lamp and the horizontal ground),the brightness value of the road surface presents a trend of first decreasing,then increasing,and then decreasing;increasing the coating of materials;The higher the coating height of the luminescent material,the greater the road illuminance value;the main factor affecting the uniformity of road illumination in the tunnel and the contrast of small objects is the installation angle of the lamp,while the factors affecting the glare value include the reflectivity of the luminescent material,the The installation angle and the coating height of the luminescent material are three factors,and the glare value is positively correlated with these three factors.(3)Using the Topsis comprehensive evaluation method to find the optimal lighting scheme in 288 simulated lighting conditions,taking illuminance,illuminance uniformity,glare,and small object visual recognition distance as evaluation indicators,the scheme with the best lighting quality is finally obtained The installation height is4.5m,the reflectivity of the side wall is 0.6,and the angle of the lamp is 20°;for the first to fifth schemes of comprehensive lighting quality,the average painting height is5.6m,the reflectance of the side wall is 0.6,and the angle of the lamp is 24°. |
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