Tricky Sheeting Problem - Excavation & Site Work - Contractor Talk

Tricky Sheeting Problem

 
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Old 11-30-2011, 05:34 PM   #1
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Tricky Sheeting Problem


Hey guys; I'm figuring a job calling for the excavation for a new street elevator in the Bronx connected to the subway beneath and it will require some support in the way of sheeting.

We're digging to the subway roof beneath the road which varies from 8'-6" to 17'-6" below street level. The dig area is about 34' x 30'.

My problem is the fact that we're digging down to the existing concrete roof deck and will require sheeting to do so; and the issue is at the toe of the sheeting...obviously we cannot just drive the soldier beams down as we normally would because it's not just earth below...we have at least 12" of concrete and steel in the subway roof deck.

Does anyone have any ideas? I don't think we're able to drill into the concrete roof deck but I have an inquiry sent in already...
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Old 11-30-2011, 08:34 PM   #2
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Re: Tricky Sheeting Problem


I am assuming that this hole will be open for awhile since you will be forming and pouring concrete.

I would contact GME, they might be able to come up with a solution.

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Old 11-30-2011, 10:53 PM   #3
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Re: Tricky Sheeting Problem


Quote:
Originally Posted by rino1494 View Post
I am assuming that this hole will be open for awhile since you will be forming and pouring concrete.
Yes that's correct; we're pouring the concrete elevator pit and shaft...the elevator shaft itself is about 11' x 12' but there is also going to be some slab infill and structural steel work in the area surrounding and adjacent to the shaft; which is why the limit of excavation is about 34' x 30' ... we definitely have to provide some sort of excavation support as we're 25% in the street and 75% at sidewalk and we have a building within 5' on one side with the street on the other...we cannot compromise any larger an area than the limits I noted above.

Quote:
Originally Posted by rino1494 View Post
I would contact GME, they might be able to come up with a solution.
Yeah I was thinking about GME's Slide Rail System...not sure I can get it to the size and placement I need. Thanks for the heads up...

Wondering if there's something I am not seeing or haven't thought about...
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Old 12-01-2011, 07:40 AM   #4
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Re: Tricky Sheeting Problem


Maybe a Vanguard shoring system. I can send you pictures of one I used. northeast shorings website has good pictures, the one on his website is actually pictures I sent him. Not sure if I can post his website link.


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Old 12-04-2011, 09:21 AM   #5
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Re: Tricky Sheeting Problem


Efficiency has a neat system that combines slide rails and some other sections used to go around utilities. They have different panels that are very narrow used to shore around obstacles in the way of large slide rail panels
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Old 12-04-2011, 04:46 PM   #6
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Re: Tricky Sheeting Problem


Thanks guys...would like to see any pictures or a link for sure.
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Old 12-04-2011, 07:11 PM   #7
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Re: Tricky Sheeting Problem


Google will help you. Worked for me http://www.efficiencytrenchbox.com/P...ilSystems.aspx

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