Lateral potato pressure?
Lateral potato pressure?
(OP)
We have a client that is interested in building some potato storage facilities. My understanding is that the potatoes are piled in bulk on the concrete floor (apparently up to 19'-0" high in this case) against the exterior walls (also concrete) of the rectangular building. A tie from exterior wall to exterior wall is established at the top of the wall (I believe it's through the roof framing members or through tie rods). Obviously, a retaining wall of sorts is created.
So the question is, what is the active pressure of potatoes? Furthermore, if it could be assumed that the top of the wall is sufficiently restrained, what is the at rest pressure of potatoes?
I was able to look up in an older design manual we have that the bulk density of dried potatoes is 58 lbs/cu ft, although I would assume that the potatoes aren't exactly "dried" when they're first placed in the building (the actual bulk density is probably higher). Of course what I don't know is the angle of internal friction of potatoes.
Any assistance you can provide would be greatly appreciated.
Also, if anyone has any other "gotchas" on facilities such as these, feel free to voice your opinion.
Thanks.
So the question is, what is the active pressure of potatoes? Furthermore, if it could be assumed that the top of the wall is sufficiently restrained, what is the at rest pressure of potatoes?
I was able to look up in an older design manual we have that the bulk density of dried potatoes is 58 lbs/cu ft, although I would assume that the potatoes aren't exactly "dried" when they're first placed in the building (the actual bulk density is probably higher). Of course what I don't know is the angle of internal friction of potatoes.
Any assistance you can provide would be greatly appreciated.
Also, if anyone has any other "gotchas" on facilities such as these, feel free to voice your opinion.
Thanks.






RE: Lateral potato pressure?
The American Society of Agriculture and Biological Engineers publishes ASAE ANSI/ASAE EP446.2 document entitled "Loads Exerted by Irish Potatoes in Shallow Bulk Storage Structures" - See:
http:
The following document also has an equation for lateral pressure due to stacked potatos which originates in the ASAE document previously mentioned:
http:
It gives the angle of repose at 37 degrees.
RE: Lateral potato pressure?
http:
see pages 10-11
RE: Lateral potato pressure?
RE: Lateral potato pressure?
RE: Lateral potato pressure?
RE: Lateral potato pressure?
RE: Lateral potato pressure?
www.SlideRuleEra.net
RE: Lateral potato pressure?