re-rounding rate of the pipe after excavation
re-rounding rate of the pipe after excavation
(OP)
The size of an ovality is usually much smaller when it is excavated comparing to what was measured with a caliper pig while the pipe was burried. I understand it is due to the pressure is reliefed when the dirt is removed. Does anyone know how much the ovality could rebound and how fast can that happen?





RE: re-rounding rate of the pipe after excavation
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/