基于自然光的公路隧道生态照明技术研究

Study on Ecological Lighting Technology of Highway Tunnel Based on Natural Light

随着公路隧道的不断修建,隧道运营消耗的能源问题越来越受到专家学者的关注。对于公路隧道入口段照明设计而言,洞外亮度值是一个关键性参数。驾驶员从较亮的洞外环境到较暗的洞内环境时,通常会产生"黑洞效应",为此入口段亮度必须提高到一定水平,这必定会消耗巨大的电能,因此进行隧道洞外减光是节约隧道照明电能的有效途径。在已运用的隧道洞外减光结构物的基础上,提出了一种新型的绿色减光形式。通过数值计算,分析结构物顶部透光率对棚下路面照明效果的影响,得到当顶部透光率为2%~3%时所达到的减光效果最好。研究结论对于今后公路隧道洞外减光设计具有重要的参考价值。

People are more concerned about the problem of energy consumption with the construction of highway tunnels. As a matter of fact,access zone luminance is a crucial parameter for illumination design of tunnel entrance section. Drivers usually produces the effect of 'black hole'from the light hole environment into the dark hole. It is bound to consume enormous power to improve the entrance section of brightness. Thus,access zone reducing light is an effective way to save electricity of tunnel lighting. This paper proposes a new form of green light reduction,based on the existing hole to reduce the light structures. This thesis analyzes the influence of structure at the top of the light transmittance on the road lighting under the shed. Drawing a conclusion,when luminousness is 2% ~ 3%,the effect of reducing light is the best. Research conclusion has important reference value for reducing light design of the section close to the tunnel portal.