Design of Pole Foundations

[DataAB]

I am trying to find literature on the foundation design of wood poles . Assume that the poles are inserted into bored holes and the annulus is backfilled with suitable fill and tamped.

The self-weight of the pole is small but the overturning moment due to wind is significant.

What I am looking for is:
* What criteria is used to determine where active, passive and at-rest lateral earth pressure, acts?
* How does one go about determining where the center of rotation is? Is it practical to determine this by hand calculations or is a computer program necessary?

Any comments or suggestions would be appreciated.

 

[JedClampett]

Go to 2006 IBC Section 1805.7. It's been around forever, but I think everyone is scared to change it. It gives you soil allowables based on standard classifications.

 

[CarlB]

I'd suggest searching the Eng-tips foundation & structural forums. This has been discussed many times. Some links to design guides have been posted.