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Old July 22nd, 2008, 01:46 PM   #6801
harryc
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Quote:
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What are the coming procedures? Excavation? Core build?
The main caisson pairs ( 7 ) will be tied together and then put in a tension ring

The bottom of the hole will be excavated. the mat woven and poured.

The secant and slurry walls will be excavated out and a floor installed at ground level over the S 1/2 of the site.

This is all speculation on my part. Tribune video which explains it better.

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Old July 22nd, 2008, 01:55 PM   #6802
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Quote:
Originally Posted by harryc View Post
The main caisson pairs ( 7 ) will be tied together and then put in a tension ring

The bottom of the hole will be excavated. the mat woven and poured.

The secant and slurry walls will be excavated out and a floor installed at ground level over the S 1/2 of the site.

This is all speculation on my part. Tribune video which explains it better.

Thanks for that!
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Old July 22nd, 2008, 04:32 PM   #6803
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Hope to visit there around 2010

I live in Northeast lower Michigan and I remembering visiting the site last summer,and am truly anxious to see it nearly completed. The progress on the foundation is slower than most of us guessed,but better to have it right than wrong. A lot more for the preperation for a supertall.
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Old July 23rd, 2008, 05:45 PM   #6804
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Quote:
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From above
cant see this picture anymore.......
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Old July 23rd, 2008, 06:15 PM   #6805
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I can
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Old July 23rd, 2008, 08:25 PM   #6806
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Quote:
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I live in Northeast lower Michigan and I remembering visiting the site last summer,and am truly anxious to see it nearly completed. The progress on the foundation is slower than most of us guessed,but better to have it right than wrong. A lot more for the preperation for a supertall.
It sure is slower! I really would have thought they would have been above ground by now. It will be so exciting to watch it rise
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Old July 23rd, 2008, 09:06 PM   #6807
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It sure is slower! I really would have thought they would have been above ground by now. It will be so exciting to watch it rise
Everything seems to be on schedule near as I can tell.
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Old July 23rd, 2008, 09:34 PM   #6808
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the tower is on shedule . this construction method (top-down) is even faster than a normal method.
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Old July 23rd, 2008, 11:03 PM   #6809
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Quote:
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the tower is on shedule.
What are some of the milestone dates are you using to make this claim?
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Old July 23rd, 2008, 11:15 PM   #6810
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A bit of info:

Butler - make sure your forumers check out the site today. They should start to salivate. LOTS going on today and for the next couple of weeks before we start running new utilities and re-working existing lines (which is what takes the time). All is in good health on-site and things are moving forward as planned. We will have more good news coming.

xxx
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Old July 23rd, 2008, 11:33 PM   #6811
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Somebody get there with a camera fast!
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Old July 24th, 2008, 01:55 AM   #6812
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July 23 - lunch

From above



higer res
2007 series
2008 Q1 series
2008 Q2 series
2008 Q3 series

Sump well ? Looks like screening on the end of this sleeve.




Last caisson ?




Taking the drill crane apart ...

... and away.


Super Caissons ( mat will be woven/poured to tie the 2 big rock caissons together ).










Wall will be on the edge of the secant wall




The last shady spot...

... on that side of the wall


the wall on the south side


moved back
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Old July 24th, 2008, 03:44 AM   #6813
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Taken today:
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Old July 24th, 2008, 03:46 AM   #6814
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Old July 24th, 2008, 08:38 AM   #6815
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has the top-down method every been used before?? i dont remember any building that has used this method to build the basements.
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Old July 24th, 2008, 10:40 AM   #6816
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Exciting
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Old July 24th, 2008, 06:42 PM   #6817
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where'$ waldo...?
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Old July 24th, 2008, 07:19 PM   #6818
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Quote:
Originally Posted by dachacon View Post
has the top-down method every been used before?? i dont remember any building that has used this method to build the basements.
Waterview Tower used this method also, but i'm not sure about other skyscrapers.
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Old July 24th, 2008, 09:12 PM   #6819
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Quote:
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Waterview Tower used this method also, but i'm not sure about other skyscrapers.
Actually Waterview used the traditional method.

OMPW and Block 37 have been using top-down, Block 37 appears to be finished with the digging, at least the big articulated scoop (?) is gone.

Block 37

OMPW start
OMPW going down



Core excavation at 111 W Wacker
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Old July 24th, 2008, 10:16 PM   #6820
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This is so frustrating! I want to see this building start going up. It seems like they've been doing the foundation and sublevels for years! Anyone know when the build should start to really rise?
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