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Old March 22nd, 2013, 09:23 AM   #4561
luhai
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Originally Posted by FM 2258 View Post


Yeah, if the concrete samples fine we can move on and upwards with this tower. If this were my project I would have the inspectors/scientists/whoever out there as soon as possible to check the integrity of the concrete. I would want no more than a weeks delay for this to happen.

Interestingly enough I was more worried about concrete integrity on the high speed rail lines. Never really imagined this would apply to a prestigious supertall.

[IMG]http://i49.************/e8nzi0.jpg[/IMG]
Actually reason for the collapse of that building was well reported.

1. The building was built next to a river with the ground essentially being mud. So a river wall needs to be strengthen before construction, so the ground can be solid and doesn't shift with added weight. However, the wall was built instead along with construction instead of prior to construction. (the head of the construction claimed he didn't understood the "intricate details" and "didn't read enough books". And the city inspector guy claims he wasn't aware things aren't done right. Both landed in prison..)

2. Next the flipped over building, they are building a underground parking lot. The excavated earth was supposed to moved out of the construction site, however, the developer has then to pile them so they can be re-used for greening projects later on. The piled earth was too close the building, together with mud, and lack of retaining wall on the river cause the ground beneath foundation to shift. It in turn broke the piles in the foundation, and the building collapses essentially by pulling out the piles out of the mud.

On the business end, this project is essentially run by a front company that despite having millions is actually run out of a tiny office with little assets or technical staff. Nearly all of the construction cost is from loans, and pre-sell of the units. The construction company is actually a family friend of developer, and they subcontract out everything and don't have the knowledge to watch over them. They didn't do a comprehensive study, because it can't afford to and don't know how to.. City officials (also in prison.) are bribed to look the other way. Can't cay it is typical in China, but I can't say it's rare either...

Here is the complete report from CCTV, reported in 2009.
http://www.youtube.com/watch?v=VoIgznD4ZZs
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Last edited by luhai; March 22nd, 2013 at 09:58 AM.
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Old March 22nd, 2013, 09:35 AM   #4562
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Just saw on Gaoloumi that workers are back on site(3-22).
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Old March 22nd, 2013, 10:42 AM   #4563
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It's shoddy QC and the truth should never be subverted for politeness.
I've never been "polite" with "modern economy", be it in China, Italy or elsewhere. But one should not forget that these kinds of methods were developed in "advanced" economies way before China became one of them.
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Old March 22nd, 2013, 11:20 AM   #4564
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Just saw on Gaoloumi that workers are back on site(3-22).
Best news of the week
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Old March 22nd, 2013, 12:57 PM   #4565
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Good. This one should be back in the U/C section soon.
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Old March 22nd, 2013, 01:31 PM   #4566
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Good. This one should be back in the U/C section soon.
With ne next picture update for sure
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Old March 22nd, 2013, 05:22 PM   #4567
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Quote:
Originally Posted by luhai View Post
Actually reason for the collapse of that building was well reported.

1. The building was built next to a river with the ground essentially being mud. So a river wall needs to be strengthen before construction, so the ground can be solid and doesn't shift with added weight. However, the wall was built instead along with construction instead of prior to construction. (the head of the construction claimed he didn't understood the "intricate details" and "didn't read enough books". And the city inspector guy claims he wasn't aware things aren't done right. Both landed in prison..)

2. Next the flipped over building, they are building a underground parking lot. The excavated earth was supposed to moved out of the construction site, however, the developer has then to pile them so they can be re-used for greening projects later on. The piled earth was too close the building, together with mud, and lack of retaining wall on the river cause the ground beneath foundation to shift. It in turn broke the piles in the foundation, and the building collapses essentially by pulling out the piles out of the mud.

On the business end, this project is essentially run by a front company that despite having millions is actually run out of a tiny office with little assets or technical staff. Nearly all of the construction cost is from loans, and pre-sell of the units. The construction company is actually a family friend of developer, and they subcontract out everything and don't have the knowledge to watch over them. They didn't do a comprehensive study, because it can't afford to and don't know how to.. City officials (also in prison.) are bribed to look the other way. Can't cay it is typical in China, but I can't say it's rare either...

Here is the complete report from CCTV, reported in 2009.
http://www.youtube.com/watch?v=VoIgznD4ZZs
The construction head person and the builders are usually not required to be 'licensed' soil experts. They just build based on soil survey reports.
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Old March 22nd, 2013, 06:09 PM   #4568
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GREAT, GREAT NEWS.
From the GOVERNMENT (Shenzhen construction and housing bureau):

深圳市住房和建设局
【检测结果公布】我局对涉嫌使用不合格海砂生产的预拌混凝土的14个工程项目,从结构实体抽芯进行氯离子含量检测,现已完成平安金融中心、嘉御豪园、龙圣堡花园、地铁5号线塘朗车辆段上盖保障性住房、宝能桔钓沙酒店一期、颂德公园等6个项目的检测,检测结果均符合国家标准。

Mere translation would be about the bureau testing 6 out of the 14 suspected housing projects that uses cheap, untreated sea sand and the result is that all 6 have passed the test, including Pingan.

There are also workers gathering at the site today and according to gaoloumi work will resume tomorrow.
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Old March 22nd, 2013, 06:39 PM   #4569
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I'm so relieved!
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Old March 22nd, 2013, 06:43 PM   #4570
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It had been a great disaster if this would have been collapsed sometimes because of that. Good that they was looking for it. I only hope that they tested it careful enough. But great that the construction resumes, that building is my favourite supertall projekt all over the world! Looks so elegant, really a building with class!
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Old March 22nd, 2013, 06:59 PM   #4571
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We'll move it back to the u/c forums as soon as sb posts an update showing relevant activity
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Old March 22nd, 2013, 07:04 PM   #4572
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Originally Posted by TowerVerre:) View Post
It had been a great disaster if this would have been collapsed sometimes because of that. Good that they was looking for it. I only hope that they tested it careful enough. But great that the construction resumes, that building is my favourite supertall projekt all over the world! Looks so elegant, really a building with class!
Agreed. If anything it shows that a system of checks and balances is working in China. They were cautious and shut things down and investigated the problem and solved it quickly.
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Old March 22nd, 2013, 07:13 PM   #4573
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3-22 by 1788111 Time to move back to UC!!!
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Last edited by Munwon; March 22nd, 2013 at 07:18 PM.
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Old March 22nd, 2013, 07:23 PM   #4574
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Old March 22nd, 2013, 07:52 PM   #4575
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Nice to see this thread in the U/C section The whole forum was freaking out for few days (myself included)
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Last edited by no_gods; March 22nd, 2013 at 09:41 PM.
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Old March 22nd, 2013, 08:07 PM   #4576
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Yes it's back
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Old March 22nd, 2013, 09:00 PM   #4577
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Originally Posted by no_gods View Post
Nice to see this thread is the U/C section The whole forum was freaking out for few days (myself included)
Indeed, the last days were terrible to me.

I'm very happy that it's back U/C
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Old March 22nd, 2013, 10:46 PM   #4578
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I do not understand, I have not followed this issue right, the concrete was applied or not? If yes how to build again?
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Old March 22nd, 2013, 11:19 PM   #4579
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There was a suspicion that the wrong type of sand was used in the concrete, so they stopped working and took some samples.
The sampels tested ok, so now the construction has resumed.
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Old March 22nd, 2013, 11:30 PM   #4580
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There was a suspicion that the wrong type of sand was used in the concrete, so they stopped working and took some samples.
The sampels tested ok, so now the construction has resumed.
We're back to business! Incredible how quickly the media was all over this!
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