Pylon install in rock??

[Signworksinc]

we need to install a pylon on rock land, any ideas?

[geraldi]

Pressure drill or dynamite. How big? How deep? How tall and sq footage of sign?

Edited May 10, 2010 by geraldi

[Signworksinc]

8" x 8" x 24' posts, 7 foot wide x 18 foot box and LED display

[Erik Sine]

Blow it up!

[Guest Signtiffic]

That's an option....deffinately quicker than pressure drilling...

I used a company in Caledon before.... its been a few years though....

They had someone that was on their team that blew shit up.

Lions Group... (416) 245-0000 Joe or Jay.... can't remember.

[fishing nut]

Call BP

[Guest Signtiffic]

Ha...... ....now there's an option.

[PhillipM]

We don't have any rock here except for gravel, but what about some of those anchors you drill an oversized hole for and then fill around with epoxy? How big do they make "redhead" type fasteners? I guess it would depend on how much tensile strength there is in your rock.

[geraldi]

Before I got out of the install biz and went strictly wholesale I installed a 120ft Pilot high rise. Had the gas pricer, a Subway, a Mc Donalds and the Pilot sign on it. It was solid rock. They wouldn't let us blast because they had already started on the Pilot building.

We rented a HAMMER HOE and an excavator from a heavy equipment co. It took 2 days with the hammer hoe and the track hoe excavator. The hole was 15'x15'x15'. I think it was 125 yards of concrete or something close to that. Needless to say, it's still standing. Thank goodness we had a rock clause in our install contracts.

So, the hammer hoe may be an option. BTW, a Hammer Hoe is basically an tracked excavator with a giant hydraulic jack hammer on the end.

[Signworksinc]

i'm going to see what the engineer suggests. we rarely work that far north and run into rock.

[Brad -Pride Signs]

i'm going to see what the engineer suggests. we rarely work that far north and run into rock.

Sign is relatively small, use chemical anchors to tied into rock to use a ballast and pour aa concrete pad base with lots of rebar tied inot the anchors.

Frost should not be a problem if concrete pour directly on clean rock.

Engineer should be able to stamp this type of solution.