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-   -   CHICAGO | BMO Tower | 727 FT | 50 FLOORS (https://skyscraperpage.com/forum/showthread.php?t=224752)

KWillChicago Dec 11, 2019 3:32 AM

Site looks pretty cleared out. Drills any day now I would presume?

rivernorthlurker Dec 11, 2019 5:05 PM

Hmm, what's going on at Van Buren and Canal this morning? Anyone?

https://app.oxblue.com/open/clarkcon...erconstruction

https://i.imgur.com/Qrmzsvv.png

Steely Dan Dec 11, 2019 5:09 PM

^ looks like it might be soil testing.

with a former parking garage sitting on the piece of land, they might have a fair bit of soil testing to do before the caisson rigs start drilling.

rivernorthlurker Dec 11, 2019 5:14 PM

Quote:

Originally Posted by Steely Dan (Post 8772795)
^ looks like it might be soil testing.

with a former parking garage sitting on the piece of land, they might have a fair bit of soil testing to do before the caisson rigs start drilling.

Ah good point. Hard to do testing under a parking garage. Was hoping they'd roll right into drilling. Hopefully they just take a quick dip, lol. :haha:

rlw777 Dec 11, 2019 5:27 PM

Quote:

Originally Posted by rivernorthlurker (Post 8772788)
Hmm, what's going on at Van Buren and Canal this morning? Anyone?

https://app.oxblue.com/open/clarkcon...erconstruction

We don't have to guess there is a second construction cam for this project that is much closer to the action at the same link.

rivernorthlurker Dec 11, 2019 5:39 PM

Quote:

Originally Posted by rlw777 (Post 8772829)
We don't have to guess there is a second construction cam for this project that is much closer to the action at the same link.

Feel like such a doofus. Thanks! I think that's newish... Plus OPO rooftop construction too. And Tokoyo Inn! :tup: https://app.oxblue.com/open/clarkcon...erconstruction

https://i.imgur.com/FLFtZwZ.png

r18tdi Dec 16, 2019 5:01 PM

Just checked the webcam... banana time??

Steely Dan Dec 16, 2019 5:14 PM

^ the new piece of equipment looks like it might be a pile-driver.

perhaps for site perimeter piling?

harryc Dec 16, 2019 6:02 PM

Quote:

Originally Posted by Steely Dan (Post 8777292)
^ the new piece of equipment looks like it might be a pile-driver.

perhaps for site perimeter piling?

The same vertical rigs are used by other contractors for caisson work, haven't seen RevCon use one for caissons yet, but generally the caissons are sunk, the piers installed, and the caissons removed before the sheet pile starts.

Steely Dan Dec 16, 2019 6:23 PM

^ i was thinking that it might be for some kind of pile driving because i didn't see any drill bits, caisson sleeves, or rebar cage assembly on site, but there are a couple of long wide flanges laying nearby, so........

harryc Dec 16, 2019 6:28 PM

Quote:

Originally Posted by Steely Dan (Post 8777366)
^ i was thinking that it might be for some kind of pile driving because i didn't see any drill bits, caisson sleeves, or rebar cage assembly on site, but there are a couple of long wide flanges laying nearby, so........

The 12:04 shot appears to show an excavator moving a (modest) belling bit.

Steely Dan Dec 16, 2019 8:13 PM

from the webcam, it looks like pile driving to me, but i'm no expert.

can anyone in the area today confirm?

shakman Dec 16, 2019 9:09 PM

The drill could be for soldier piles which means excavation will be next. When I zoom in, the resolution is lost.

harryc Dec 16, 2019 9:55 PM

Quote:

Originally Posted by Steely Dan (Post 8777495)
from the webcam, it looks like pile driving to me, but i'm no expert.

can anyone in the area today confirm?

That is definitely a sheet pile vibrator pusher thingy on the red vertical rig.

SolarWind Dec 18, 2019 7:18 PM

I believe work has begun on the secant pile wall. I'll post a couple of photos later. Also, two concrete trucks were on site.

SolarWind Dec 19, 2019 1:20 AM

December 18, 2019










Fvn Dec 19, 2019 2:25 AM

Quote:

Originally Posted by SolarWind (Post 8779881)
December 18, 2019




That looks like they're coring something. I know when they did the transit center next door they had problems driving sheet piles and had to drill out some old concrete in order to do so.

Concrete trucks are possibly filling an old utility vault/duct.

KWillChicago Dec 19, 2019 3:08 AM

So confused, as an amateur. Would love a YouTube video of what makes this one different, digging wise.

rivernorthlurker Dec 19, 2019 5:06 AM

Quote:

Originally Posted by SolarWind (Post 8779881)
December 18, 2019



What size bit is this? :shrug:

Great pics solar!

LastWyzard Dec 19, 2019 12:22 PM

There was a pedestrian tunnel from the demolished parking structure to Union Station. Possibly they are dealing with that?


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