Dear Specialists;

I got trouble with our Civil Department because of Anchor Force load.
Is it logical to get an anchor force about 40 tones (around 400.000 Newton) at the anchor point of an above ground pipeline (continuously supported by soil) in case of a 12" pipeline which design pressure 80 bars and design temperature= 100°C, installation temperature=15°C?

Our Civil department pretended that is too big.
What do specialists think?

Best Regards

That is a large value. You're not trying to restrain thermal growth, are you?

I'm trying to restrain thermal growth in order to avoid damaging piping systems inside well and manifold.
Both flowlines are with anchor blocks.

Sorry for the msitake: we shall read "Both ends of the flowline will be anchored". We provided 02 anchor blocks , one for well side and another at the manifold side.

You can redirect thermal growth with an anchor, but you can't restrain it. This is why you never see a straight run of pipe between two anchors, the loads are HUGE !

This isn't what you're trying to do is it?

Thanks Richard;

I provided dogleg configuration at both ends of the pipeline in order to absorb thermal growth. Doglegs are "S" shaped piping system with 40*OD field cold bends, but eventhough the force are not bellow 40 tones. Without these doglegs, the anchor forces are around 70 tones. So I confirm to you that my pipeline is not running straightly.
I don't know how to attach a PDF file into this forum, otherwise I'll send you a picture.

I think that there is problem with my Stress Analysis Model. My present thread is in strong relation with the other thread that I posted in this forum (see Post Yield Stiffness). Without setting K2=0, even my stress checking failled (overstress) and the anchor load are more huge than 40 tones.

Send your model to techsupport@coade.com and ask them to take a look at it.

Try to put expansion loop in the midpoint between the two anchors , this should help