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Old March 19th, 2012, 09:55 PM   #3561
fayzoon
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NOW should it be in the U/C stage ??
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Old March 19th, 2012, 09:56 PM   #3562
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Quote:
Originally Posted by patrykus View Post
Let me do it for you

As castletower said, all of this pics are curtesy of admin of the site engineersinside.com who is working on the project. Big thanks to him, and visit his site if you're interested in civil engineering projects, there is lots of interesting articles in here. I for one find very interesting (and never heard of before) the up side down hanging monorail in germany, and automatic robotic parkings also in germany. If you are interested in that kind of stuff there is a lot in this site.

Now, to the pictures:

They are from January and February, and presents installation of 78m long test pile.





























more:
















WOW

Very great


Quote:
Originally Posted by fayzoon View Post
NOW should it be in the U/C stage ??
Yes I agree with you
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Old March 19th, 2012, 09:58 PM   #3563
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Quote:
Originally Posted by fayzoon View Post
NOW should it be in the U/C stage ??
no
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Old March 19th, 2012, 11:11 PM   #3564
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As was said, they are doing the loading tests much like when the Burj was built. I remember the old photos from early on showing the steel beams and platforms piled high with a "pyramid" of concrete blocks.

So if this (or these) test piles meet up to the load specifications and the data is acceptable, they should start the real piling soon after, right?

I'd imagine there's still probably a month or two until they start building the real foundation at any rate, then who knows how many months until they make the mat. It won't take quite as long since less underground work (sealing / protection etc.) only needs to be done and no actual excavation for basement levels has to happen.
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Old March 19th, 2012, 11:14 PM   #3565
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correct, the guy from engineersinside told us they will perform pile load test on those piles in few days
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Old March 20th, 2012, 02:17 AM   #3566
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When is this tower scheduled to be completed?
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Old March 20th, 2012, 03:40 AM   #3567
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Last time i heard, 2017. Quite ambitious considering its scale.
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Old March 20th, 2012, 04:00 AM   #3568
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Quote:
Originally Posted by SirAdrian
Last time i heard, 2017. Quite ambitious considering its scale.
I say 2020, here in Saudi Arabia nothing finishes in time!

We use mars calendar :P
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Old March 20th, 2012, 04:27 AM   #3569
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Hi all.

As with The BK, they will probably test some of the working piles in place, after the piling program begins.

So Rody's source may have been premature in conveying the foundation has already been designed. If that is the case, as Real posted, it could be a few months before piling begins. The piling program for this project will take around 4 to 6 months, raft pouring (including prep) a month or 2 , and raft curing anywhere from 3 to 6 months.

Awesome that this project is moving forward.


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Old March 20th, 2012, 05:17 AM   #3570
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I talked to the engineer from EngineersInside and he told me that currently the O-Cell test was performed. In about a month they will proceed with the execution of working piles (as I wrote it on my site)
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Old March 20th, 2012, 06:42 AM   #3571
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thanks for the info^
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Old March 20th, 2012, 11:35 AM   #3572
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Quote:
Originally Posted by Fury View Post
So Rody's source may have been premature in conveying the foundation has already been designed.
Ray.
My understanding is that foundation has been designed. They just testing the piles to confirm the design. Anyways thats what the engeenirsinside guy told us:

http://www.engineersinside.com/proje....html#post2672

I guess if these final tests would fail they would have to modify/change the design but if no they can go forward with the current design.
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Old March 20th, 2012, 04:54 PM   #3573
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+1
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Old March 20th, 2012, 05:09 PM   #3574
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A little contribution about the "O-cell test"

Quote:
Originally Posted by O-cell Test View Post
The O-cell is a sacrificial jack like device installed within the
foundation unit. The O-cell is specifically engineered to offer
negligible internal friction even with eccentric movement. The
depth of the O-cell within the pile is set according to the test
program requirements. A typical level for the O-cell can be
determined where there will be equal capacity above and below to
maximise the load that can be mobilised in the pile during the
test.
The O-cell is attached to the reinforcing steel cage or other
support structure to ensure its location and depth is located
precisely.
After the concrete reaches a minimum strength, the test may be
started. Separation of the pile into two elements is induced by
hydraulic pressure applied at the cell.
As the load is applied to the O-cell, it begins working in two
directions; upward against upper skin friction and downward
against base resistance and lower frictional capacity (if
applicable), the O-cell test requires no kentledge, reaction beam
or anchor piles.
The test is considered complete after reaching ultimate capacity
above or below the O-cell or upon reaching the maximum
capacity of the O-cell.
Instrumentation is included in each test pile/barrette for direct
measurement of O-cell expansion, pile compression and top-ofpile/
barrette movements. The test pile/barrette often includes
monitoring strain gauges embedded in the shaft.
Applications
Bi-Directional O-cell Static Load Testing has been performed on:
• Drilled Shafts
• Bored Piles
• Caissons
• Driven Piles
• Slurry Walls
• Barrettes
• CFA or Auger Cast Piles
• Fundex piles.
The O-cell can be used in production and non-production
foundations. Multiple O-cells can be used and placed on the same
plane to increase the available test capacity to virtually any load
or several of the loading arrangements can be located at different
levels.
Specially constructed O-cells can be attached to driven piles or
cast within concrete precast piles. Bi-directional O-cell load
testing can be performed on:
• pre-stressed concrete piles
• steel pipe piles
• concrete shell piles
Advantages
The O-cell test does not require kentledge, reaction beams or
anchor piles, which can be very costly to transport and install.
High loads can be applied to magnitudes not possible with any
other static test method. Loads in excess of 100 MN are not
uncommon, with tests in excess of 220 MN possible.
For offshore tests, piles constructed with restricted access or
where concrete cut-off levels are very low, the O-cell method
may be the only load test option possible.
The O-cell test is a full scale static loading test, just two running
simultaneously, which measure directly the upward upper skin
friction and downward end bearing and lower frictional
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Old March 20th, 2012, 09:39 PM   #3575
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Quote:
Originally Posted by Reinsdorf Sucks View Post
http://enr.construction.com/building...gatallest-.asp

There is no bedrock at the site along the Red Sea, which contains a form of limestone made from decomposed coral. The foundation design calls for 270 augured piles that reach 50 to 70 m below grade, topped by a mat.
Abracadabra ... better holler out another one for that shared link too
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Old March 20th, 2012, 10:04 PM   #3576
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Quote:
Originally Posted by religionflag View Post
I say 2020, here in Saudi Arabia nothing finishes in time!

We use mars calendar :P
the base of the tower seems to go faster than other buildings with a similar scale, i think no gigantic holes are needed like ping an has. 2017 is really too close, but i could imagine mid to late 2018
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Old March 20th, 2012, 10:23 PM   #3577
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You should all read this article again
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Old March 21st, 2012, 12:06 AM   #3578
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too long which line do you mean ??
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Old March 21st, 2012, 01:34 PM   #3579
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A quick question... Why on god's earth would someone want to quote a whole post with 22 pictures on it (that have been previously posted, hence the quote) just to add 3 words at the bottom...

Unbelievable... laziness or abject stupidity?
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Old March 21st, 2012, 02:48 PM   #3580
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Quote:
Originally Posted by fast_fokker View Post
A quick question... Why on god's earth would someone want to quote a whole post with 22 pictures on it (that have been previously posted, hence the quote) just to add 3 words at the bottom...

Unbelievable... laziness or abject stupidity?
Some people on here just don't think too much....
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