Pipes and Cables
I had a look at an old factory at the way pipes and cables are
run,supported and allows to expand and contract. I compared this with what I expect is done under the roads.where they are also subjected to the vibrations from traffic pounding into the potholes left by the utliities and the constant thumping down of the manhole shafts and thought - Do we use best practices? |
Pipes and Cables
On 06/04/2020 13:01, John wrote:
I had a look at an old factory at the way pipes and cables are run,supported and allows to expand and contract. I compared this with what I expect is done under the roads.where they are also subjected to the vibrations from traffic pounding into the potholes left by the utliities and the constant thumping down of the manhole shafts and thought - Do we use best practices? No, but expansion/contraction is much less of a problem underground, as temperatures vary much less. The surrounding earth will restrain movement too - much like continuously welded rail doesn't need the large number of expansion joints that bolted rails do. SteveW |
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