Compressive Axial Force: Pipeline
Compressive Axial Force: Pipeline
(OP)
I know that over a pipeline the effective axial force is compressive (negative), and that it builds up to a constant value over the so called 'anchor length'. The 'anchor point' being the point at which the effective axial force in the pipeline equals the friction between the pipeline and the seabed, and where the pipeline no longer expands. This results in the force profile that most pipeline engineers will be familiar with. I was wondering though, does this force profile include the tie-in spools? As I'd of thought the tie in spools will, in some cases if not all, be in tension?





RE: Compressive Axial Force: Pipeline
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"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: Compressive Axial Force: Pipeline
What do you mean by "V" tie-in spools, are these the vertical tie-in design that tend to be used in deep water?
RE: Compressive Axial Force: Pipeline
The tie-in spool I used to use was a swivel flange, a length of pipe, a ball joint, a length of pipe and another swivel joint. Overall length was at least 40 feet and not really a V as the vertex angular rotation was limited to relatively small values. We would lower those with a spreader bar to divers and they would swing it in place and blot it up. They probably have a more expensive way to do it now using a "hydrolock" fitting or something.
As you can see here,
http://ww
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there are a number of different methods you could use.
**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: Compressive Axial Force: Pipeline
http://ww
**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/