13層新建集合住宅倒塌案例（中國上海）
發表於 : 2009 7月 21 (週二) 12:25 pm
Building Collapsed In Shanghai(06/27/2009) ?(Daqi)
At around 5:30am onJune 27, an unoccupied building still under construction at Lianhuanan Road in the Minhangdistrict of Shanghai city toppled over. One worker was killed. Accordingto information, a 70 meter section of the flood prevention wall in nearby Dianpu Riverand that may have something to do with this building collapse.
But the high-resolution photos are really amazing.
(China Daily)
Improper construction methods are believed to be the reason of last Saturday'sbuilding collapse in Shanghai,according to a report from the investigation team. The investigation team'sreport said that workers dug an underground garage on one side of the buildingwhile on the other side earth was heaped up to 10 meters high, which wasapparently an error in construction, according to a report on eastday.com, Shanghai's official news website."Any construction company with common sense would not make such amistake," said an expert from the investigation team.
Earlier this week, there were also reports saying that cracks on theflood-prevention wall near the building, as well as the special geologicalcondition in the water bank area, may be part of the reason for the collapse."These factors are not the basic reason of this accident," said theexpert.
Nine people linked to the building collapse, including the real estatedeveloper, contractor and the supervisor for the project, have been put"under appropriate control", said the official Xinhua News AgencySunday evening.
Firm's ignorance led to toppling of Shanghaibuilding, report says ?By Will Clem and Lillian Zhang. ?July 4, 2009.
An official investigation into the collapse of an unfinished building in Shanghai has said that the accident wasdue to the construction company's "ignorance", rather than flaws inthe design or building materials. However, the report stopped short ofapportioning blame, and has been criticised for failing to address keyissues.
The report said the collapse was caused by earth, excavated to make a 4.6-metredeep pit for an underground car park alongside the building, being piled todepths of up to 10 metres on the other side of the structure. The weight of thepile created a "pressure differential" which led to a shift in thesoil structure, eventually weakening the foundations and causing them to fail.This situation "may" have been aggravated by several days of heavyrain leading up to the collapse, but investigators would not say whether thiswas a crucial factor. The report said the construction company - ShanghaiZhongxin Construction - "did not consider clearly" that the earthpile could have such a devastating effect.
Investigators stopped short of saying whether the company's errors werenegligent or easily avoidable. However, they stressed that the building'sfoundations and construction materials all complied with the city's buildingregulations.
Huang Rong , director of the Shanghai Urban Construction and CommunicationsCouncil, said inspections had shown that none of the remaining 10 apartmentblocks was in immediate danger. "The surrounding buildings are nowstable," he said. "The safety inspection of these homes will be thesecond phase of our professional team's work."
Jiang Huancheng , an architect and a lead investigator for the report, said ithad been an "enormous shock" to see the site for the first time."In my 46 years in the industry, I have never seen or heard of this,"he said. "To put it simply this was ignorance leading to rashness. We needto take this accident as an important lesson ... and ensure that it does nothappen again."
Several days before the release of the report, Wu Hang , Mr Jiang's assistant,accused the construction company of incompetence and lacking "commonsense". Mr Wu said the investigation had found there had been nostructures to support the walls of the car park pit, and this had been a keyfactor contributing to the accident.
(1) An underground garage was being dug on the south side, to a depth of 4.6meters
(2) The excavated dirt was being piled up on the north side, to a height of 10meters
(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 thanwhy the pilings could tolerate. ?Thus the building toppled over in thesoutherly 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.
基樁破壞照片
