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Pics of 1955 MRT Tunnels WITH VENTILATION TUNNELS for LTA & Lui to learn

Discussion in 'Picture/Video Posts / Photo journalism' started by uncleyap, Jan 23, 2012.

  1. uncleyap

    uncleyap Alfrescian Old Timer

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    We have posted plenty of articles about the Moscow Metro so, for a change, these are photographs of Metro tunnels of Saint Petersburg.







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    These tunnels opened back in 1955.


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    This is a ventilation connection between the air well and four stages.

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    This ventilator is supposed to work 24 hours a day.



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    Somewhere in the Saint Petersburg Metro, there is a construction which became abandoned several decades ago. Its cast-iron vaults are eaten away with rust.

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    The ventilator has been turned on.


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    Regular infiltration devices like those used in Moscow are not used in Saint Petersburg anymore. Local authorities prefer more ingenious equipmet for this purpose.

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    Ventilation installations.


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    Many years ago it used to be a research laboratory.

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    A hermetic door.


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    This stage opened not long ago. Here, instead of tubing, they used concrete blocks.

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    Another hermetic door.

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    The view from the second floor.

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    Location: Saint Petersburg
     
    Last edited: Jan 23, 2012

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