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Old March 27th, 2008, 08:30 PM   #5601
webeagle12
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Originally Posted by skyperu34 View Post
Wow ! Very interesting updates. There is so much work at ground and underground. Will it rise above street level before the end of June?
not a chance
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Old March 27th, 2008, 10:57 PM   #5602
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Thank you for the update Harry. The pics are very very interesting!
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Old March 27th, 2008, 11:01 PM   #5603
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Originally Posted by Green Jello View Post
Something just crossed my mind about the Spire. It might look really cool before the cladding is put on.
i am sure that chicago spire will look amazing without the cladding
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Old March 28th, 2008, 04:05 AM   #5604
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Fantastic pics. The first thing you notice is how close those nice looking apartments are to the construction activity... were there any planning/amenity issues with the project?
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Old March 28th, 2008, 10:02 AM   #5605
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thanks for the pics harry c. and thanks for the comments, they really help people like me who have no idea whats happening in the foundation stages
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Old March 28th, 2008, 10:12 AM   #5606
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Originally Posted by Northerly View Post
Fantastic pics. The first thing you notice is how close those nice looking apartments are to the construction activity... were there any planning/amenity issues with the project?
I think I remember several articles in the news solely about the uproar those apartment people were in. They probably tried to bring the project down without much luck at all. But honestly, thats just the risk of living near empty lots in a thriving, build-crazy downtown.
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Old March 28th, 2008, 01:41 PM   #5607
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Quote:
Originally Posted by Northerly View Post
Fantastic pics. The first thing you notice is how close those nice looking apartments are to the construction activity... were there any planning/amenity issues with the project?
The few residents I have spoken with are less than thrilled at having a large construction site next door. On the other hand it was inevitable that a building would be built here and an ALL RESIDENTIAL building - upper crust at that - is much better than a cineplex and bar.

It is soo European
Lanark Scottland ( a close )


Chicago Ill ( real close )
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Old March 28th, 2008, 04:44 PM   #5608
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All that stuff you've showed us in all those pictures (thanks a lot, harry! ) reminds me the construction of Marina City (which also are residential towers with rounded footprints ):

--> http://www.marinacityonline.com/history/page05.htm


Enjoy it!!

Last edited by Taller & Taller; March 28th, 2008 at 04:55 PM.
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Old March 28th, 2008, 08:02 PM   #5609
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Old March 28th, 2008, 08:04 PM   #5610
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Old March 28th, 2008, 08:10 PM   #5611
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now i'm getting a bit scared. I think this thing is going to poke through deep down on the china end of things quicker than going up above ground level in chicago. what is going on in that hole for so long or do i really not want to know.
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Old March 28th, 2008, 08:17 PM   #5612
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forgive the ignorance, but what are they doing with those 'caissons'? Are they using them to dig out shafts to put the piles in for the foundations? Or building support walls or something around the site? How deep are they driving those things in to the ground? I'd really like to know what they are actually doing at this stage of construction/site prep. It looks like some of the caissons are being sunk inside the hole, and some around the site so they must have different purposes. And is the site all grey mud? It looks like they haven't hit bedrock yet, which I assume is what they want to build on. Thanks for any info you can give!

Last edited by Doomlord_uk; March 28th, 2008 at 08:18 PM. Reason: speling
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Old March 28th, 2008, 08:41 PM   #5613
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pure rumor and speculation, but I heard that they are not going to build up until a certain number of units are sold. Again, just heard from some guys downtown I know in construction.
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Old March 28th, 2008, 09:14 PM   #5614
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Quote:
Originally Posted by Doomlord_uk View Post
forgive the ignorance, but what are they doing with those 'caissons'? Are they using them to dig out shafts to put the piles in for the foundations? Or building support walls or something around the site? How deep are they driving those things in to the ground? I'd really like to know what they are actually doing at this stage of construction/site prep. It looks like some of the caissons are being sunk inside the hole, and some around the site so they must have different purposes. And is the site all grey mud? It looks like they haven't hit bedrock yet, which I assume is what they want to build on. Thanks for any info you can give!

They will place a permanent liner (steel) into the caisson holes, place a rebar cage into the hole then fill it with concrete. Those particular caissons are going to bedrock.

It's clay.

The big-big hole where you see the drilling equipment is for the core and it's about 65' - 70' deep. Bedrock is about -110'.
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Old March 28th, 2008, 10:48 PM   #5615
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many thx victor for the pics!
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Old March 29th, 2008, 01:28 AM   #5616
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March 28 - AM

From above



higer res
2007 series
2008 series

Busy site - even at 7am


Frosted caisson sleeves ( liners )


Core caissons staging area


More pieces for the frame - still not sure what this is for or what it will look like.







Way to go Victor - you are the master of access.
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Old March 29th, 2008, 03:05 AM   #5617
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Quote:
Originally Posted by BVictor1 View Post
They will place a permanent liner (steel) into the caisson holes, place a rebar cage into the hole then fill it with concrete. Those particular caissons are going to bedrock.

It's clay.

The big-big hole where you see the drilling equipment is for the core and it's about 65' - 70' deep. Bedrock is about -110'.
Ah, ok thanks

So they dug down 70' so they'd only have to drive the caissons down another 40' or so? Or they're putting in some kind of structure or concrete bed over those before building in the hole? It's easy to see what's happening but much harder to see why. One thing that strikes me too is that the hole is just for the core - the building is wider than that therefore. Don't foundations generally need to be as wide as the building (if possible)?

image hosted on flickr


And what are those caissons for? The outside of the structure then?

Thanks!
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Old March 29th, 2008, 05:44 AM   #5618
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How sure is this tower to be built? I've read on other forums that their is no financing and it won't be built at all according to his source. Instead, another smaller building will use these foundations.
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Old March 29th, 2008, 05:59 AM   #5619
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A link from my friend over at SSP and a great citizen at SSC too!

Sorry if I beat you to it TUP but there are peoples on-line right now talking about this building.

Quote:
Originally Posted by the urban politician View Post
Chicago reaches for the sky
By Hal Weitzman

Published: March 29 2008 00:42 | Last updated: March 29 2008 00:42

A giant blue-and-white painted porcelain egg hangs from the ceiling next to the reception at the Chicago Spire sales centre. Like almost everything else in the space, the egg is the work of Santiago Calatrava, the Spanish star architect. The impact is *powerful and immediate and its message clear: the place you are entering is dedicated to art, design, beauty and perfection. If you do not get it, you probably will not be walking out of the door an hour later clutching a contract for a property in one of the most talked-about developments on the planet.
Financial Times
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Old March 29th, 2008, 06:06 AM   #5620
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Quote:
Originally Posted by Doomlord_uk View Post
Ah, ok thanks

So they dug down 70' so they'd only have to drive the caissons down another 40' or so? Or they're putting in some kind of structure or concrete bed over those before building in the hole? It's easy to see what's happening but much harder to see why. One thing that strikes me too is that the hole is just for the core - the building is wider than that therefore. Don't foundations generally need to be as wide as the building (if possible)?

image hosted on flickr


And what are those caissons for? The outside of the structure then?

Thanks!
They dug down 70' (60' ?)to put in the mat - a thick web of concrete and rebar - this sits on top of the caissons being installed now. Doing it from the bottom of the pit is new ( to me ).

Most buildings have a central core ( the elevator shaft ) with caissons around it, so does this, the outer pairs are buried now ( at least 3 of the sets ) and are at The N, E and W edges of the site.

The ones you highlighted are for the 70' deep parking garage.
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