Sizing PVC pipe
Sizing PVC pipe
(OP)
I believe this should be an easy one for you all. I am locating a PVC 4"-diameter pipe underneath a slab on grade in a loading dock area. The PVC pipe will be approximately 12 inches below the slab on grade which is approximately 6 inches thick for a total of 18 inches below the loading point. How do I determine what schedule of pipe I need in order to resist the bearing pressure from a forklift or other heavy vehicle that transmits through the concrete slab into the compacted fill and eventually over the pipe? By the time the load is transmitted to the top of the pipe, I've got about 800 psf of bearing pressure. Any sugggestions on determining schedule of pipe?





RE: Sizing PVC pipe
try www.victaulic.com
RE: Sizing PVC pipe
At first glance, I don’t think you have a problem with the load you described. The short term uniform collapse pressure for 4” sch 40 PVC is around 100 psi. Take a look at http://www.us.piping.georgefischer.com/external/us_handbook/03.pdf for engineering data on PVC pipe.
RE: Sizing PVC pipe
You can also try to get some help from Harrington Plastics at http://www.hipco.com.
jt
RE: Sizing PVC pipe
RE: Sizing PVC pipe
PWPIpe Technical Bulletin TB-D5
"Depth of Burial For PVC Pipe"
http://www.pwpipe.com/documents/pwpipe0013.pdf
On a quick and unrepeated calc, it looks like you'll have a 0.89% (on ASTM 2729 Drain Line) deflection on the pipe (verify), which is well within the 5% recommendation.
RE: Sizing PVC pipe
Nice paper, thank you for the link.
PUMPDESIGNER
RE: Sizing PVC pipe
RE: Sizing PVC pipe
This thread was a gold mine for good technical articles on PVC pipe. Your links were excellent also.
Thank you.
PUMPDESIGNER