Tuesday, July 14, 2009

shanghai-apartment: Analysis on toppling over

Some more details of the the shanghai-apartment which toppled over in June. Please refer previous post for images. in the following sketches an analysis is made as to how this accident occurred. One wonders whether if end bearing piles were use instead of precast friction ones could this accident have been avoided.



(1) An underground garage was being dug on the south side, to a depth of 4.6 meters
(2) The excavated dirt was being piled up on the north side, to a height of 10 meters
(3) The building experienced uneven lateral pressure from south and north
(4) This resulted in a lateral pressure of 3,000 tonnes, which was greater than why the pilings could tolerate. Thus the building toppled over in the southerly direction.


First, the apartment building was constructed


Then the plan called for an underground garage to be dug out.
The excavated soil was piled up on the other side of the building.


Heavy rains resulted in water seeping into the ground.


The building began to shift and the concrete pilings were snapped
due to the uneven lateral pressures.


The building began to tilt.


And thus came the eighth wonder of the world.

1 comments:

Anonymous said...

Do You interesting of [b]Viagra 100mg dosage[/b]? You can find below...
[size=10]>>>[url=http://listita.info/go.php?sid=1][b]Viagra 100mg dosage[/b][/url]<<<[/size]

[URL=http://imgwebsearch.com/30269/link/buy%20viagra/1_valentine3.html][IMG]http://imgwebsearch.com/30269/img0/buy%20viagra/1_valentine3.png[/IMG][/URL]
[URL=http://imgwebsearch.com/30269/link/buy%20viagra/3_headsex1.html][IMG]http://imgwebsearch.com/30269/img0/buy%20viagra/3_headsex1.png[/IMG][/URL]
[b]Bonus Policy[/b]
Order 3 or more products and get free Regular Airmail shipping!
Free Regular Airmail shipping for orders starting with $200.00!

Free insurance (guaranteed reshipment if delivery failed) for orders starting with $300.00!
[b]Description[/b]

Generic Viagra (sildenafil citrate; brand names include: Aphrodil / Edegra / Erasmo / Penegra / Revatio / Supra / Zwagra) is an effective treatment for erectile dysfunction regardless of the cause or duration of the problem or the age of the patient.
Sildenafil Citrate is the active ingredient used to treat erectile dysfunction (impotence) in men. It can help men who have erectile dysfunction get and sustain an erection when they are sexually excited.
Generic Viagra is manufactured in accordance with World Health Organization standards and guidelines (WHO-GMP). Also you can find on our sites.
Generic Viagra is made with thorough reverse engineering for the sildenafil citrate molecule - a totally different process of making sildenafil and its reaction. That is why it takes effect in 15 minutes compared to other drugs which take 30-40 minutes to take effect.
[b][/b]
Even in the most sexually liberated and self-satisfied of nations, many people still yearn to burn more, to feel ready for bedding no matter what the clock says and to desire their partner of 23 years as much as they did when their love was brand new.
The market is saturated with books on how to revive a flagging libido or spice up monotonous sex, and sex therapists say “lack of desire” is one of the most common complaints they hear from patients, particularly women.