I used a small Bobcat style front end loader here...took about 10 minutes to
remove it. -Mike
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Jim Lux
Sent: Thursday, November 03, 2011 12:12 AM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Tower base removal
On 11/2/11 7:56 PM, jcjacobsen@q.com wrote:
> Rob needs to remove a big 'ol chunk of concrete:
> <snip>
> Once the tower is gone, the widow really wants to have the concrete base
gone too. My
> suggestions of building a deck over it was not an option. I remember you
> guys talking about using a jackhammer to remove the top
.............................
>
> --rob
> K6DQ
> <snip>
>
> Rob,
> I've thought this thru at times because I'm going to have to do the same
thing when I sell this house down the road a bit.
> #1. If the base is real close to the house, a jack hammer may
disturb/crack/rattle/harm the foundation in someway.
> #2. IF you go that route, dig the dirt away from the side of the concrete
so that it has some place to "expand" into as the hammer goes down.
> #3. I'm currently thinking of scoring the base with a concrete saw as deep
as I can then split it off.
>
> #4. Someone suggested expanding clay in holes. Maybe
> #4. OR take a page from stone workers who use the little feather and wedge
things in holes drilled into the "rock". They are placed in the holes and
then hit with a large maul, working back and forth from on to another until
the rock splits.
>
If it worked for ancient and modern Egyptians quarrying obelisks out of
Aswan granite, why not. Small hole, insert wood wedge, add water. Wood
swells, causes crack along cleavage plane. You can also do it with metal
wedges all along a line, and whacking them one by one. (I watched them
do this last winter.. tedious, but it does work)
Too bad it doesn't work for reinforced concrete very well.
After the Sylmar earthquake, there were collapsed freeway support
columns that were essentially indestructible. So much rebar that they
were immune to fracturing techniques (including drill/blast). They
basically dug big holes in situ and buried it.
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
__________ Information from ESET NOD32 Antivirus, version of virus signature
database 6596 (20111102) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
__________ Information from ESET NOD32 Antivirus, version of virus signature
database 6596 (20111102) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|