隧道加强照明配光优化技术研究

Study on Optimizing Technology of Tunnel Enhanced Lighting Distribution Curve

公路隧道照明中相比中间段基本照明而言,加强照明采用传统宽光曲线照明的性价比并不高,较长照射路径反而易造成过多的光通量损耗。为此,本文采用数值模拟的方法对隧道加强照明进行仿真,对比收光型和非收(宽)光型两种配光曲线的照明计算结果,分析收光曲线的照明效能并进一步优化配置。研究结论为:加强照明收光型配光曲线比非收光型配光曲线更节能,当路面平均照度要求为1 500 lx时,非收光曲线照明需求光通量高出收光曲线照明15.8%;收光曲线照明时路面照度总均匀度并不比非收光曲线照明低;对称型收光曲线拱顶单光带布设时,横向偏0.45 m时照明效果最佳。

The enhanced zone lighting is compared with the interior zone lighting,the economic benefits of using traditional wide-light curve illumination are not high,and the longer illumination path is likely to cause excessive luminous flux loss.To this end,this paper uses the numerical simulation method to simulate the tunnel reinforced illumination,compares the lighting calculation results of the narrow light type and wide light type two light distribution curves,analyzes the lighting performance of the narrow light curve and further optimizes the configuration. The conclusions of the study are as follows:the narrow-light distribution curve is more energy-efficient than the wide-light distribution curve. When the average road surface illuminance is 1 500 lx,the luminous flux required for wide-light curve illumination is 15.8% higher than that of narrow-light curve illumination;The overall uniformity of road surface illumination is not lower than that of the wide light curve;when the symmetrical narrow-light curve dome is laid with a single light belt,the illumination effect is best when the lateral offset is 0.45 m.