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八达岭长城地下102米 有一座世界最深的高铁站

2017-08-14 10:42:58   中国青年网

长城下,有一座世界最深的高铁站

在世界文化遗产八达岭长城核心区和老京张铁路下方,一处震撼世界的工程正在悄然推进。地下102米处,正在崛起的京张高铁长城站连接北京与张家口,不仅是2022年北京冬奥会的重要交通设施之一,也是京包兰快速客运通道的重要组成部分,连接西北和华北。

记者近日走进施工现场,揭秘这座特别的地下高铁站。

——八达岭长城地下102米,发生着你不知道的巨变!

(图:长城下高铁站模拟图)

站在中铁五局八达岭隧道二号斜井工地的位置,可以清晰地看到对面山头八达岭长城的烽火台。工地门外,老京张铁路的一个小站静静地卧在山坡上,偶尔一列只有很少几节车厢的列车驶过,拉慢了时光。

(图:建设中的京张高铁八达岭长城站)

这片静谧之下,要建成总长470米,地下建筑面积3.6万平米,轨面位于地下102米的一座高铁站。

【为什么要建这么深?】

中铁设计咨询集团京张高铁八达岭长城站总设计师吕刚:车站选址是综合考虑了服务延庆、服务冬奥、服务八达岭景区和保护青龙桥车站、八达岭长城等多方面需要,埋深之所以大,是为了保护我国近代工业的象征——青龙桥车站人字形线路的需要。

【高铁站分为上下三层】 从下至上第一层是站台层,第二层是进站通道,第三层是出站通道及设备层。

【乘客如何乘车?】 从地面站房通过电梯下降62米到达站台层。

(图:乘客换乘通道)

绿色亮灯的部分便是乘客进站、出站的通道。可以看出,这个高铁站中进出站通道是分离的。

(图:红色管道为求生通道)

【能否保证安全?】 上图中通体红色的管状廊道,现在是施工通道,未来将形成立体环形求生通道,乘客在车站的任何位置都可以在50米之内到达求生通道。

(图:4根竖直管道为通风井)

【地下如何换气?】 上图可以看出,车站第三层中央有4个通风井,新鲜空气可以从这里进去。

【抗震性能如何?】 中铁五局京张项目部八达岭隧道二号斜井技术主管许琪告诉记者,整个隧道按照高标准抗震设防要求设计,抵抗烈度为8度的地震是没问题的。

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