双车道公路隧道照明灯具优化布置研究

Study on Optimization of Luminaire Distribution of Two-Lane Road Tunnels

随着公路隧道数量和里程的增加,隧道照明和维护费用不断攀升,如何在保证照明需要、行车安全的前提下,有效降低能耗已成为亟需解决的问题。公路隧道照明灯具布置形式及布置参数设计是实现隧道照明绿色节能的重要一环。依托大万山特长公路隧道,采用数值仿真软件研究中线偏移布置、两侧对称布置和两侧交错布置3种布灯方式下,灯具高度和照射角度对隧道照明效果的影响。研究结果表明:灯具两侧对称及两侧交错布置时,灯具照射角度为25°的照明效果最佳;灯具中间偏移布置时,灯具高度宜设置为7 m,此时灯具最佳照射角度为10°。中线偏移布置照明效果最好,两侧对称布置次之,两侧交错布置效果最差。双车道公路隧道照明灯具布置形式最宜选用中线偏移布置。

As the number and mileage of road tunnel increase,the cost of tunnel lighting and maintenance keeps rising.On the premise of ensuring lighting needs and driving safety,effectively reducing energy consumption has become an urgent problem to be solved.The layout form and parameter design of highway tunnel lighting is an important link to realize green and energy-saving tunnel lighting.Based on Dawanshan road tunnel,numerical simulation software is used to study the influence of lamp height and irradiation angle on tunnel lighting effect under three lighting arrangement modes:centerline offset luminaire distribution style,staggered luminaire distribution style and symmetrical luminaire distribution style.The results show that the best lighting effect is obtained when the lighting angle is 25°in both staggered luminaire distribution style and symmetrical luminaire distribution style.When arranged in the middle offset,the height of the lamp should be set to 7 m,and the best irradiation angle of the lamp is 10°.The best lighting effect occurs in centerline offset luminaire distribution style,followed by symmetrical luminaire distribution style,and then staggered luminaire distribution style.The centerline offset luminaire distribution style is the most suitable arrangement in two-lane road tunnel.