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Steel Stack inclines !!

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SZignus

Materials
Dec 29, 2014
3
Hi all,

Currently, I have a big issue in my petrochemical plant. I have 60meter-height steel stack which has been inclining. So far, we have inspection program (measure the misalignment) every 2 weeks. The result shows that it is getting more incline. But I don't know what is the criteria that we should stop the operation and start repairing.
Anyone has any standard about the incline of stack ? Please help me
 
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How fast is the rate of change of the angle?
(How long before you must shutdown?)

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When you shutdown to repair the failure of the foundations, how long do you have to make the repairs?
 
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