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:
Around 100 families evacuated from residential buildings near now-demolished Supertech twin towers in Noida returned to their homes till Sunday night.
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.
The Supertech Twin Towers in Noida were demolished today in a massive explosion. Over 3,700 kg of explosives were used to bring the two towers down, resulting in a sea of smoke and debri engulfing the area.
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.
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.
The Supertech twin towers in Noida, which are taller than the Qutub Minar, will be razed to the ground at 2:30 pm today, nine years after residents went to court alleging violation of norms. 3,700 kilograms of explosives would be used to destroy them.
- 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.
The wind direction around the Supertech twin towers in Noida on Sunday changed towards east ahead of their demolition, which will make dust particles drift towards Greater Noida and Bulandshahr instead of Delhi, officials said.
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.
The Supertech twin towers in Noida, which are taller than the Qutub Minar, will be razed to the ground at 2:30 pm today, nine years after residents went to court alleging violation of norms. 3,700 kilograms of explosives would be used to destroy them
- 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.
Ahead of the Noida Supertech twin towers demolition today, several NGOs are woking to rescue street dogs from the blast area.
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.
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.
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'.
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.