jjorsett: Pictures and "Oh golly" stuff is fine, but would it kill you to maybe put in a brief explanation of WHY this happened?
Odd Bird: http://www.bbc.co.uk/news/uk-england-london-25862543Not much detail but more than subby's link./not a dig at subby
kenchie: This disrupted my journey home tonight. At least it's an original excuse.
FarkinNortherner: In this area, they were carrying out compensation grouting, to avoid settlement and heave in the hygroscopic clay which underlies most of London. This involves pumping a cementitious mixture down pre-drilled shafts to reinforce the subsoil. On rare occasions the shafts break through into voids, including, under Tottenham Court Road, a plague pit (!). A very rapid increase in flow rate should trigger a halt to pumping.My supposition (I was a real engineer, rather than a civil, but this is a fairly well-educated guess) is that in this case there was a breakthrough into the control room during drilling or pumping.
FarkinNortherner: I was a real engineer, rather than a civil
FarkinNortherner: real engineer, rather than a civil
talkertopc: Was I the only one who thought this would be about a Victoria's Secret lingerie manufacturing plant?
Russ1642: There's no such thing as a civil engineer.
fireant451: I can play two diagonals and a lateral shunt to bypass the Victoria Line in it's entirety as it is January 23 of an even numbered year, per the revised rules of 1956, appendices 4 and 9.So, Vauxhal, then Mornington Crescent!
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