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Underground Great Wall

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  • Underground Great Wall

    Build by the Song against the Kitan (the later Liao) in Hebei Province (永清县 Yǒngqīng Xin the City of 廊坊; Lngfāng, 390'15.63"N 1161'53.70"E).

    It is called Dixia changcheng 地下长城, a military defense system of tunnels of the entire length of about 90km. It was forgotten until 1948, when it filled with water of a flood and the ground began to lower itself.

    It is part of the list of cultural posessions of the PRC since 2006 (resolution 6-14) under the name Bianguan didao yizhi (边关地道遗址).

    click, clack, clock, cleck and 这儿

    -chinoook
    chinoook's 1st law: Structurally weak walls tend to have double structures.
    chinoook's 2nd law: Newer walls are built next older walls, not over them.
    chinoook's 3rd law: Similar problems lead to similar solutions.

    The most dangerous worldview is the worldview of people, who have not viewed the world. (Alexander von Humboldt (1769-1859), German naturalist and explorer)

  • #2
    Re: Underground Great Wall

    cluck

    Not the same thing but both must be very interesting.

    Will our GPS receivers work?
    Bryan

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    • #3
      Re: Underground Great Wall

      Originally posted by chinoook View Post
      It is called Dixia changcheng 地下长城, a military defense system of tunnels of the entire length of about 90km. It was forgotten until 1948, when it filled with water of a flood and the ground began to lower itself.
      A fantastic subject! I love tunnels and underground cities a lot.

      This is my favourite part from the clock link article:
      Within the cave, dozens of small doors, each opening to a passageway, were found. Inside were small huts with half burnt candles and lamps on heatable brick beds.

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      • #4
        Strategic Implications of China's Underground Great Wall
        Bryan

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