[TowerTalk] [Tower Talk] Solutions for Tower Base in Fresh Water?

[n8de at thepoint.net]

Unguyed?  Rohn?

Doesn't that contradict the basic rule:  Do what the manufacturer says???

Rohn tower, if I remember correctly is designed to be GUYED ... not  
free-standing.

73
Don
N8DE


Quoting Jim Lux <jimlux at earthlink.net>:

> On 3/19/12 6:49 AM, Larry Libsch wrote:
>> Group -
>>
>>           The tower is self standing,  adding to the difficulties. Thanks
>> for much good advice from many respondents. Sounds like we need to do
>> some serious rethinking.
>>
>
> Freestanding, unguyed..
>
> Then you're all set.  Assuming you talk to an Engineer with some local
> experience, it's mostly a matter of building a suitable base that can
> take the overturning moment.  Since other people put up tall towers
> around you, there's clearly sufficient engineering knowledge potentially
> available.
>
> The base will probably be bigger than the one in the mfr plans, just
> because the "bearing strength" of your soil might be less.  On the other
> hand, just because your soil is wet doesn't mean it's less strong (for
> instance, imagine a bed of packed gravel.. it could be quite a bit
> stronger than soft squishy wet silt)
>
> Clearly, though, you need to get some local expertise.. (ARRL has
> Volunteer Consulting Engineers.. maybe there's one in your area?.. or
> you can find someone to do the job for a fairly small sum)
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