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Re: [TowerTalk] Help with fixing a leaning tower (NOT Pisa)

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Help with fixing a leaning tower (NOT Pisa)
From: "Joe Subich, W4TV" <lists@subich.com>
Date: Sun, 17 Apr 2011 17:45:26 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
>>> Any suggestions? My rear yard is not that large, so abandoning
>>> the  base and putting in a new one is really not an option.

I don't like being the one to say "the emperor has no clothes" but
the right thing to do is get a geotechnical engineer to check the
soil conditions and design a proper footing that will not settle.
Then jackhammer the old foundation out and replace it with a proper
one.   If the foundation is settling as severely as you indicate,
it is simply not safe to continue using it.

73,

    ... Joe, W4TV


>> On 4/17/2011 10:17 AM, Arthur Bernstein wrote:
>>> Hello to all,
>>>
>>>
>>>
>>> I have a Hy Gain HG-52 SS 52 foot crankup. It's been up for a number of
>>> years. The concrete base is as per specs. 42" on a side and about 5'6" deep
>>> with about 6 more inches of concrete above the ground.
>>>
>>>
>>>
>>> The problem  is the tower is leaning due to the apparent settling of the
>>> concrete base on one side. The base is near the rear of my house and is
>>> leaning away from the house. For those not familiar with this tower and its
>>> base, it uses 3 "dog ear" type mounts that are attached to a rebar cage
>>> imbedded in the concrete. Each of the "ears" has two holes that are mated to
>>> the similar dog ears on the bottom of the tower. The base is very similar to
>>> the Tri Ex bases, such as for the W-51.
>>>
>>>
>>>
>>> A few years ago, a friend re plumbed the tower by redrilling some of the
>>> holes in the dog ears and welding new nuts onto it, thus making the tower
>>> vertical. It seems that the ground behind my home is not as stable as I had
>>> thought, over 20 years ago (unfortunately.) We have run out of room on the
>>> dog ears to redrill to plumb the tower.
>>>
>>>
>>>
>>> Any suggestions? My rear yard is not that large, so abandoning the base and
>>> putting in a new one is really not an option.
>>>
>>>
>>>
>>> Any help would be appreciated. Thanks.
>>>
>>>
>>>
>>> 73,
>>>
>>>
>>>
>>>
>>>
>>> Art., N2KA
>>>
>>>
>>>
>>> n2ka@verizon.net
>>>
>>> _______________________________________________
>>>
>>>
>>>
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>
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