Re: Gerrards Crosas Tesco tunnel to go ahead

On 26 Jun, 19:18, Guy Gorton <drossguy.gor...@xxxxxxxxxxxxxxxxx>
wrote:

Indeed it is, Tony, and it goes much further into technical and
engineering detail than one might expect. However, lots of questions
spring to mind such as how is the new concrete to be formed on the
outside of the existing segments.

If you examine the drawing more closely, you will see that it
indicates that the new reinforced concreter will be cast in three
horizontal sections on each side of the pre-cast arches, with a shaped
cap poured over the top.

The elevation shows a vague
indication of additional material to restrain outward movement of the
foot of the new concrete, but how is that anchored?

The method of construction described above reduces the pressure at the
lower end of the shuttering, so shouldn't be a problem.

The use of foamed concrete above the structure will reduce the amount
of fill. AIUI, some of the fill that was removed after the collapse
is still stored locally. The original fill consisted of two different
materials, which had to be used separately in different parts of the
construction. At removal, these became largely mixed. The
requirement for a reduced volume of fill, which shouldn't have the
requirement for different types, may mean that this can be reused.
That should please the locals twofold: Less import of fill, and the
removal of the stored fill.



.

Relevant Pages

  • Re: Choice sequences, intuition, etc
    ... |disjunctive connective - it says "either there is a construction ... have peace of mind, whether they are safe, whether they can ... them have taken paradigm shifts as being such radical ... adopted a "constructivist" frame of mind. ...
    (sci.logic)
  • Re: Mahler #6
    ... case could be made that visual and aural stimuli are only the raw material used to form the relationships constituting the artwork for the perceiving mind. ... I find there are cases where even if I don't like the singer's voice, the total experience can still carry me along. ... A + B = C, we can appreciate C only to the extent that we get involved with A and B. Particularly in music and movies, it's the "world" that's important, if one wishes to grasp the pattern. ... And that can be a result of the more abstract structural working that has its own power over and above the materials that are employed. ...
    (rec.music.classical.recordings)
  • Re: The fallacy of strengthened liars paradox --- NAFL-acceptable self-reference
    ... that Mr. X had in mind? ... points to the sentence under construction, ... But the issue I am considering is how a human mind ... This incomplete sentence, which is under construction, will be ...
    (sci.logic)
  • Re: When did you break into actually selling pieces?
    ... that people seem intriqued by the "mistakes" or unexpected attributes ... imperpfections I either made or were inherent in the wood, ... materials, that people will long for the moments when they can leave ... that directs the mind of the observer to wonder and disbelief. ...
    (rec.crafts.woodturning)
  • Re: When did you break into actually selling pieces?
    ... that people seem intriqued by the "mistakes" or unexpected attributes ... imperpfections I either made or were inherent in the wood, ... materials, that people will long for the moments when they can leave ... that directs the mind of the observer to wonder and disbelief. ...
    (rec.crafts.woodturning)
Loading