Friction pile

Corey Y · Mar 11, 2016

Anyone here do it or have it done? Im planning a 45'x45' machine shop built on 8' of fill and need 9 piles 30' deep. Not sure who does residential piles in Washington. Google isnt helping.

ain'tstuckjustresting · Mar 11, 2016

I know pearson drilling Inc out of Edmonds will do residential piles.

jeffroadams · Mar 11, 2016

Does it need to be friction or can you do geopiers?

Corey Y · Mar 11, 2016

Would a 300 series excavator with a plate compactor drive a 10" x 20' pipe into dirt? Im guessing it is around 10' of compacted fill, no rocks in Puyallup.

jeffroadams · Mar 11, 2016

Highly doubtful, and if by some chance it did work it would be a nightmare to get started. Look into geopiers. They drill down and then fill the holes with crushed aggregate and compact it.

RusM · Mar 11, 2016

https://www.google.com/search?q=pil...droid-verizon&sourceid=chrome-mobile&ie=UTF-8 :flipoff:

82toyomud · Mar 11, 2016

Geopiers are pretty awesome, work great and go in quick. We've installed thousands of them at work and have used them all over the U.S.

crash2 · Mar 21, 2016

What is a friction pile?

Corey Y · Mar 21, 2016

Steel or wood driven into the ground, not all the way down to hard rock or gravel. Used under a structure so the foundation does not sink on soft ground.

Skip to the 1:00 mark https://m.youtube.com/watch?v=htjdFXP_IEI

crash2 · Mar 22, 2016

Wouldn't you be better off boring holes and filling with concrete?

Corey Y · Mar 22, 2016

That would work too. Its going to be a few years before the shop gets built and I am exploring my options.

82toyomud · Mar 22, 2016

crash said:
Wouldn't you be better off boring holes and filling with concrete?

Those are auger cast piles. They take longer to put in and usually cost more.

crash2 · Mar 23, 2016

I am sure the cost is more. Myself using wood as a base like that just feels like a bad idea.

zukkev · Mar 23, 2016

crash said:
I am sure the cost is more. Myself using wood as a base like that just feels like a bad idea.

We've got piles driven some 30+ feet under our building at work... How many? I don't know---A bunch!!! :redneck: But I am here to tell you, when we put in our newest hoist last year, the contractors needed to cut 4 poles, that were driven in, to just below the level of the new cement basin the hoist sits in...Damn things were in there buried underground for 15 yrs, and looked brand new when exposed/cut. they MUST be treated somehow... I don't think there's an issue with using the right wood/treatment...

cisco · Mar 23, 2016

My neighborhood is a drained peat bog. The hard glacial till is 15 to 20 feet below the surface so they run steel pin piles down until they hit something solid and then pour the foundation on top of those.

boardbysled · Mar 24, 2016

Wood piles last a long time in the ground because of the lack of oxygen for decayers to do their work on it. The area of issue is where they are above the ground.