HOUSTON | Main Place | 630 FT / 192 M | 46 FLOORS - Page 12

CHAPINM1 · #**221** Posted **Sep 24, 2008, 5:48 AM**

I don't understand how such a building can have a floating foundation! Wasn't there ANY drilling down that reached bedrock?! Or is the bedrock that sits under Houston at a very near level?

shakman · #**222** Posted **Sep 24, 2008, 1:56 PM**

Quote:

Originally Posted by CHAPINM1

I don't understand how such a building can have a floating foundation! Wasn't there ANY drilling down that reached bedrock?! Or is the bedrock that sits under Houston at a very near level?

No drilling in the hole.

photoLith · #**223** Posted **Sep 25, 2008, 12:08 AM**

Quote:

Originally Posted by shakman

No drilling in the hole.

Thats what she said.

Sorry I couldnt help myself.

Complex01 · #**224** Posted **Sep 25, 2008, 3:36 AM**

Right...

Anyhow the webcam is back up. Yeah...

shakman · #**225** Posted **Sep 25, 2008, 6:58 PM**

Quote:

Originally Posted by photolitherland

Thats what she said.

Sorry I couldnt help myself.

Oh I'm sorry. Was I suppose to laugh?

When does assembly commence for the second tower crane?

Vladimir O'Shea · #**226** Posted **Sep 26, 2008, 2:25 PM**

Quote:

Originally Posted by CHAPINM1

I don't understand how such a building can have a floating foundation! Wasn't there ANY drilling down that reached bedrock?! Or is the bedrock that sits under Houston at a very near level?

The closest bedrock under Houston would be the Wilcox formation at about 7000 feet. Thats probably the reason they didn't drill down to it, but I'm no engineer, just a geologist.

photoLith · #**227** Posted **Sep 26, 2008, 9:06 PM**

Quote:

Originally Posted by Vladimir O'Shea

The closest bedrock under Houston would be the Wilcox formation at about 7000 feet. Thats probably the reason they didn't drill down to it, but I'm no engineer, just a geologist.

How if they dont drill into the bedrock do they secure buildings in Houston. Do all of the modern skyscrapers have a cantilever system? What does the JP Morgan Chase tower use to secure its foundation?

Wattleigh · #**228** Posted **Sep 28, 2008, 10:08 PM**

Quote:

Originally Posted by shakman

When does assembly commence for the second tower crane?

It's already up. Happened in the past few days.

Here's a small pic from the webcam. I'll try and get a better one this week.

photoLith · #**229** Posted **Sep 28, 2008, 10:43 PM**

Wow a crane in central downtown. It hasnt seen that since the 80s probably!

Michi · #**230** Posted **Sep 29, 2008, 2:34 AM**

The cranes have a very big presence downtown...nice to see especially after all of the destruction of the hurricane. I tried to get some photos today, but it was too difficult from the angles that I passed.

CHAPINM1 · #**231** Posted **Sep 29, 2008, 2:36 AM**

If anyone could answer the foundation question that would be very much appreciated! Yes, how exactly are such as this one and others including the Chase tower supported?! One would figure there would HAVE to be something such as bedrock that is being used to support them... With a floating foundation, wouldn't the towers sink into the ground over time? Just a thought...

Complex01 · #**232** Posted **Sep 29, 2008, 4:04 AM**

Quote:

Originally Posted by Wattleigh

Oh very nice. Great to see 2 cranes...

Wattleigh · #**233** Posted **Sep 30, 2008, 8:24 PM**

Quote:

Originally Posted by photolitherland

Wow a crane in central downtown. It hasnt seen that since the 80s probably!

Or 2003.

I wish I'd taken a photo during that time, but I remember that a number were happening all at once: 717 Texas (Calpine Center), Reliant Energy Plaza, Hilton Americas, Toyota Center & Garage, Inn at the Ballpark...

From Discovery Green Yesterday...

Complex01 · #**234** Posted **Oct 1, 2008, 3:27 AM**

Ahh they could be brothers...

As for the foundation question, wish i could help, but i know next to nothing about foundations and what not.

Complex01 · #**235** Posted **Oct 7, 2008, 5:15 AM**

Quote:

Originally Posted by photolitherland

Wow a crane in central downtown. It hasnt seen that since the 80s probably!

I was browsing the web and found the photo in the attached pdf. I know the photo cant be that old, because the Toyota Center and Hilton are almost finished. Anyhow if you look closely, you can see a whole heap of cranes around downtown. I counted 9. Maybe there are more.

Enjoy...

http://www.houstonpavilions.com/project/Aerial-Map.pdf

ardecila · #**236** Posted **Oct 7, 2008, 6:46 AM**

Quote:

Originally Posted by photolitherland

How if they dont drill into the bedrock do they secure buildings in Houston. Do all of the modern skyscrapers have a cantilever system? What does the JP Morgan Chase tower use to secure its foundation?

Do you know what a bell caisson is? It takes the load of a column and distributes it over a wider area, so that the firm support of bedrock is not needed, and the clay soil can support even these tall buildings.

photoLith · #**237** Posted **Oct 13, 2008, 4:32 AM**

^^^
hmm didnt know that, thanks, now I know! I have heard of a Bell Caisson before but didnt know what it was.

Complex01 · #**238** Posted **Oct 15, 2008, 3:06 PM**

Some updates from today. It looks like they are almost done on the first underground floor....

Coming along nicely...

TXLove · #**239** Posted **Oct 15, 2008, 9:54 PM**

Thanks for the update Complex01....so eager to see this one rise!!!!

Complex01 · #**240** Posted **Oct 16, 2008, 12:57 AM**

"Oh hey, you know sure..."

Now who can tell me who said that...