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首都新十六景之一,当今世界上最大的广场北京天安门广场与金水桥之间,于今年一月至四月修建了两条地下通道,两条地道分别由广场穿过东、西侧路及东、西长安街,每条通道长约268米。地道工程设计考虑了高峰节日广场游人可达百万人次,地道净宽11.90米,净高2.75～2.80米,设计小时人流通行量为21000人次。两通道各设了三个行人进出
One of the New 16th Kingdoms of the capital. Between Beijing’s Tiananmen Square and Jinshui Bridge, the largest square in the world, two underground corridors were constructed between January and April this year. Two tunnels respectively run from the square through the east and west sides And east and west Chang’an Avenue, each channel length of about 268 meters. Authentic engineering design takes into account the peak holiday Square visitors up to millions of people, the authentic net width of 11.90 meters, a net height of 2.75 ~ 2.80 meters, the design of hour traffic flow 21000 passengers. Two pedestrians set up three access