1.5 m is a cover depth ,
imperfections are in meter of course.
does exist any ampirical method to do this verification? . Because in caesar stress analysis is not commom to consider pipeline imperfection .
Dear LittleInch,
thank you for your reply
temperature difference = 70 °C
Soil depth : 1.5 m
soil type : compacted
my concern is how to estimate bending stress ,at imperfection zone, just before buckling ( pre-upheaval ).
sicenrely
Dear Specialist;
I'm facing a problem of upheaval buckling of a gas buried pipeline.
In fact when doing upheaval study report , company ask to include a stress verification taking into consideration Bending moment resulting from the imperfections (0,1 to 0,5) , in order to check the most...
Thank you LittleInch,
DIN8062/8063 is for PVC piping , but I think the same issue is for HDPE.
In fact, the confusion is that somtime suppliers does not consider Outside diamter but they use Nominal diameter for pipe and fittings.
but yes I think that the better solution is to highlight the...
Good day,
I have confusion when expressing piping or fittings accroding to DIN 8062/DIN 8063 ,
The confusion is about norminal sizes again Outside diamters . Standard does not specify the nominal size but only nominal outside diamter. but suppliers does not follow the same approach about...
