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Noida Twin Tower: The demolition was carried out using 3,700 kg of explosives. (File)
Noida:
The Supertech twin towers in Noida were brought down today in a massive explosion. The bringing down of the towers, lasting about nine seconds, gives moral victory to residents of Supertech Emerald Court in Sector 93A after their nine-year court battle with realty firm Supertech.
Around 100 families evacuated from residential buildings near the now-demolished twin towers returned to their homes till Sunday night.
Over 5,000 people from Emerald Court and ATS Village societies were evacuated before the demolition of the twin towers.
With the demolition done, the next challenge for Noida authorities is to clean the mountain of debris generated due to the demolition. Officials involved with the operation had earlier said about 55,000 tonnes of debris would be generated. It may take as much as three months to clear the debris. The waste will be dumped at designated areas.
The demolition exercise took place under a ₹ 100 crore insurance policy. This should cover damage to adjacent buildings, if any. The premium and other costs have to be borne by Supertech. While the demolition project may cost upwards of ₹ 20 crore, the loss of the towers – skeletal as they were – is estimated at more than ₹ 50 crore.
Here are the Highlights on Noida Twin Towers Demolition:
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Around 100 families evacuated from residential buildings near now-demolished Supertech twin towers in Noida returned to their homes till Sunday night.
Over 5,000 people from Emerald Court and ATS Village societies were evacuated before the demolition of the twin towers.
Two illegally constructed high-rise buildings in Noida were demolished today. The 100-metre-high twin towers were brought down in seconds, creating a huge cloud of dust.
Chetan Dutta, the man who pressed the button to demolish Supertech Twin Towers in Noida, said when the team behind the demolition realised it was successful, they “hugged each other and cried”.
The Supertech Twin Towers in Uttar Pradesh’s Noida were demolished today, a year after the Supreme Court ordered that the illegally-built structures be brought down. The nearly 100-metre-high towers fell like a pack of cards within 9 seconds, courtesy 3,700 kg of explosives.
With the demolition done, the next challenge for authorities now is to clean the mountain of debris generated. Officials involved with the operation had earlier said about 55,000 tonnes of debris would be generated. The debris includes rubble, steel and iron bars. It may take as many as three months to clear the debris. The waste will be dumped at designated areas.
Noida twin tower demolition: Demolition exercise was covered under ₹ 100 crore insurance policy
The demolition exercise took place under a ₹ 100 crore insurance policy. This should cover damage to adjacent buildings, if any. The premium and other costs have to be borne by Supertech. While the demolition project may cost upwards of ₹ 20 crore, the loss of the towers – skeletal as they were – is estimated at more than ₹ 50 crore.
About 7,000 residents of the area were moved out this morning. Gas and power supply in the adjoining buildings has been suspended. They will be restored by 4 pm, and residents will be allowed back in by 5.30 pm. Police have asked residents to wear masks indoors when they are allowed back into their homes to guard against the dust.
🔴 Watch: Noida Twin Towers Demolished#TwinTowersDemolitionpic.twitter.com/pkbvBLLfTQ
– NDTV (@ndtv) August 28, 2022
The two towers were rigged with over 3,700 kg of explosives. Explosives were inserted into nearly 7,000 holes in the pillars of the buildings and 20,000 circuits were set. The blast was planned to ensure that the towers fall straight down in what is called the “waterfall technique”.
With the demolition done, the next challenge for Noida authorities is to clean the mountain of debris generated due to the demolition. Officials involved with the operation had earlier said about 55,000 tonnes of debris may have been generated. It may take as much as three months to clear the debris. The waste will be dumped at designated areas.
The blast, lasting about nine seconds, caps a nine-year legal battle between residents of Supertech Emerald Court in Sector 93A and the realtor over the two towers.
Noida Supertech towers brought down in the biggest demolition of its kind in the country.
- The collapse will last for nine seconds, according to the project engineer. It will take about 12 minutes for the dust to settle, depending on the wind speed. About 55,000 tonnes of debris will be generated, and it may take as much as three months to clear it. The debris will be dumped at designated areas.
- The explosion is expected to trigger vibrations in a 30-metre radius for a few seconds. The magnitude of these vibrations, according to officials, may be about 30 mm per second — similar to an earthquake measuring 0.4 on the Richter scale. Noida’s structures are built to withstand earthquakes measuring up to 6, say officials.
Around 560 police personnel, 100 people from reserve forces, 4 Quick Response Teams & NDRF team have been deployed at the site. Speaking about the arrangements, Rajesh said, “560 police personnel, 100 people from reserve forces, 4 Quick Response Teams & NDRF team deployed. Traffic diversion points activated.” “Expressway only to be closed right before the blast at around 2.15pm. It will be opened half an hour after blast, soon as dust settles down. Instant command centre has 7 CCTV cameras. Traffic expert here along with us, monitoring all congestion points,” he added.
Noida twin towers, wrapped with 3,700 kg explosives, to be brought down in 9 seconds
The collapse will last for nine seconds, according to the project engineer. It will take about 12 minutes for the dust to settle, depending on the wind speed.
A green corridor has been established to attend to any emergency situation, traffic DCP Ganesh Prasad Saha told reporters. Speaking about the traffic situation, Mr Saha said, “A green corridor has been established to attend to any emergency situation. Traffic diversion plans are being implemented in the area.”
The wind direction around the Supertech twin towers have changed towards east ahead of their demolition. This, officials said, will make dust particles drift towards Greater Noida and Bulandshahr instead of Delhi. For the last one week, the direction of wind was towards the west but the change was sudden, Regional Officer, Uttar Pradesh Pollution Control Board, Praveen Kumar was quoted as saying by PTI.
NDRF team is in its final leg of preparations before the demolition begins in Uttar Pradesh’s Noida. Canine warriors brought in as well.
- The twin towers set to be demolished this afternoon were constructed as per the building plan approved by Noida development authorities and no deviations were made.
- The demolition of these two towers will not impact its other real estate projects.
#SupertechTwinTowers Demolition | NDRF team in its final leg of preparations before the demolition begins in Noida; canine warriors brought in as well. | reported by news agency ANI pic.twitter.com/k7cLWX8JOh
– NDTV (@ndtv) August 28, 2022
Realty firm Supertech said today the twin towers set to be demolished this afternoon were constructed as per the building plan approved by Noida development authorities and no deviations were made. Supertech added that the demolition of these two towers will not impact its other real estate projects, which will be delivered to homebuyers.
“The Twin Towers Apex and Ceyane in Noida are a part of the Emerald Court project at Sector 93A constructed on land allotted by Noida authority. The building plans of the Project including the two towers were approved by the Noida Authority in 2009 which was strictly in accordance with the then prevailing Building Bye laws announced by the State Government,” Supertech Ltd said in a statement.
No deviation from the building plan was made and it was constructed after making full payment to the authority, it added.
All Residents From Two Societies Near Noida Twin Towers Evacuated
All residents from the two societies near the Noida Supertech twin towers have been evacuated while the private guards are set to leave around 1 pm, reported news agency PTI. Besides, cooking gas and power supply have been disconnected in the two societies, said officials.
Ahead of the explosion that will bring down the massive twin towers in Noida today, the project head of the engineering firm tasked with the job said he’s getting “goosebumps” since morning. “I have been getting goosebumps since morning. I am a little nervous but confident as well,” said Utkarsh Mehta of Edifice Engineering while speaking to NDTV. He said all preparations have been done and the blast will be executed at 2:30 pm.
UP | A combined force of NGOs is working to rescue dogs at the last moment before the #SupertechTwinTowers demolition today
We have today saved almost 30-35 dogs, we’re working on getting out each & every one of them: NGO member pic.twitter.com/fdm1Qt2wJi
– ANI UP/Uttarakhand (@ANINewsUP) August 28, 2022
After the explosives are set off to bring down the Noida Supertech twin towers, vibrations will be felt up to 30 metres, but only for a few seconds, that too at just about 30 mm/second. In simpler words, that’s equal to an earthquake of 0.4 on the Richter Scale. Noida routinely gets minor tremors, and structures built as per norms here can withstand a Richter Scale-6 earthquake.
Noida Twin Towers Demolition Trivia – Collapse To Be Over In 9 Seconds
The collapse of the Noida Supertech twin towers will last for nine seconds, the project’s engineer has said. He will stand next to the blaster, to be designated by the Noida administration, besides three experts from Africa and some other government officers – not more than 10 people in all – who will stand at least 100 metres away. It will take another 12 minutes for the dust to settle. It could vary a bit if wind speed isn’t the usual. After that, labourers will move in to check on adjacent buildings, and get to work on the debris immediately. The debris, of course, will take much longer to clear – up to three months for the 55,000 tonnes (or 3,000 trucks). It’ll be dumped at some designated areas in the region.
Trivia – 3,700 Kg Explosives Fitted For Noida Supertech Twin Towers Demolition
Explosives weighing around 3,700 kg have been inserted into nearly 7,000 holes in the pillars of the two Supertech towers in Noida. These holes are two metres each, meaning 14 km of holes house the explosives. To bring it all together, 20,000 circuits have been set. When triggered, these will crash the pillars in such a manner that the towers fall straight down – it’s called the ‘waterfall technique’.
The evacuation of two housing societies near the soon-to-be-demolished twin towers of Supretech was nearing completion, officials said this morning. The evacuation of around 5,000 residents of Emerald Court and ATS Village societies was scheduled to be completed by 7 am. Most of the residents have already moved out, many of them last evening itself, police officials said around 7.15 am. “The evacuation is nearing completion,” an official said. While the residents, their vehicles and pets had to be moved out by 7 am, private security and other staff will also be removed from the two societies by 1 pm, the officials added. The demolition of the two illegally built towers is scheduled for 2.30 pm. (PTI)
8 metres: That’s how close some of the adjacent apartment buildings are to the Noida Supertech twin towers that are set to be demolished today. There are several others within 9-12 metres. They have been covered in a special cloth to minimise dust penetration. In the South Africa case, other buildings were just 7.8 metres away, but the demolition was done safely.
Of the two Supertech towers in Noida set to be demolished today, Apex tower’s height is 103 metres while Ceyane stands at 97 metres. The tallest building to have been brought down with an implosion in India stood at 68 metres, in Kerala. It was demolished in 2020. The world record, too, came about that same year, when a building of 168 metres was brought down in Abu Dhabi.
Trivia – Noida Supertech Twin Towers Demolition
As many as 40 floors were planned in each of the Supertech towers in Noida originally. While some couldn’t be built due to a court halting it, some of the construction were broken down manually ahead of the final implosion-and-collapse. Now, Apex tower has 32. Ceyane has 29. The plan was to have more than 900 flats, two-thirds of which had been booked or sold. The Supreme Court ordered a refund with interest. A skeletal structure remains.
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