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概述众所周知,万里长城是中华民族精神力量的象征,是全世界最著名的文物景观之一。为了方便中外游客,我国政府投巨资修建了八达岭高速公路。因为八达岭长城处于山区,出于保护景观的需要,必须开掘多个隧道,隧道工程在整个工程中举足轻重。居庸关隧道属于八达岭高速公路工程的二期工程,全长600米,宽13米,共分三个车道。在隧道的入口和中部各安装有三个车道信号灯,分别控制车道的通行和关闭。隧道两侧共安装了323盏照明灯,其中250W的灯226盏,150W的灯97盏。照明总功率达71.05KW。
Overview As we all know, the Great Wall is a symbol of the spiritual strength of the Chinese nation, is one of the world’s most famous cultural relics. In order to facilitate foreign tourists, our government invested heavily in the construction of the Badaling Expressway. Because the Badaling Great Wall is in the mountains, many tunnels must be excavated for the sake of protecting the landscape. The tunneling project plays an important role in the whole project. The tunnel of Juyongguan belongs to the second phase of the project of Badaling Expressway, with a total length of 600 meters and a width of 13 meters, and is divided into three lanes. Three lane lights were installed at the entrance and middle of the tunnel to control lane access and closure respectively. A total of 323 lamps were installed on both sides of the tunnel, including 226 lamps of 250W and 97 lamps of 150W. The total power of lighting up to 71.05KW.