[TowerTalk] Large Tower Base

[Grant Saviers]

My PV arrays were on 8" sch 40 pipe buried 8' in 36" diameter concrete 
(Santa Clara County permit nonsense).  A big Bobcat  with an hydraulic 
auger can do that - really amazing.  Also, when the auger hit solid rock 
and the Bobcat spun 20 degrees - awesome!

Grant KZ1W


On 3/6/2013 7:41 PM, K8RI wrote:
> On 3/6/2013 9:33 PM, Wilson Lamb wrote:
>> Lots of wasted bandwidth here!
>> Patrick is obviously one of the very few among us with knowhow and 
>> resources to get outside the box!
>> Until you work in a few fab yards and around a few drilling derricks, 
>> you don’t really understand possible!
>> With all his gear, raising this spindly little base will be a snap!
>> I’d agree, however, that the proposed foundation piers sound a little 
>> small.
>> With all that gear, he should be able to just yank the old ones out 
>> by the flanges and reuse them.
>> We know nothing of his soil, but drilling about 8’ of 2-3’ hole and 
>> planting the old piers in them
>
> Drilling is the key word here..if possible
>
> We have 150' "poles" for the cell system in town.  why 150'? Too close 
> to the airport to go higher.
>
> The bases for those poles (which are really big) were bored with a 
> giant size auger, Looked like a post hole auger on the back of a 
> tractor, but this sucker was on steroids.  It looked like some of the 
> huge earth moving equipment you see in open pit mining operations.
>
> The biggest problem was getting rid of all the dirt it was bringing up.
> Wish I'd had photos of the operation.
>
> 73
>
> Roger (K8RI)
>
>
> surrounded by concrete, might just do it!
>> Positioning will be the hard part, so assembling the lower tower 
>> section and using it to locate the piers seems a good idea.
>> I think sitting up there with a cool one and watching the sunset over 
>> the Kansas plain will be a hoot...just be sure there’s a handrail on 
>> that staircase!
>> Please get those pictures out asap, Patrick!
>> Wilson
>> W4BOH
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