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Demolition in the Twin Towers of Noida evacuated zone: 10 Facts

Demolition in the Twin Towers of Noida

New Delhi: The Supertech Twin Towers in Noida will be demolished by a massive explosion at 2:30 p.m. today. The area has been evacuated, and arrangements have been made to ensure surrounding structures are not affected by the blast.

1. More than 3,700 kg of explosives have been placed in both towers. Explosives have been pumped into some 7,000 holes in the pillars. Twenty thousand circuits have been installed. When activated, these drop the posts so that the towers fall downwards; this is called the “waterfall technique.”

2. According to the project engineer, the collapse will last nine seconds. Depending on the wind speed, it will take about 12 minutes for the dust to settle. Some 55,000 tons of debris will be generated, and it can take up to three months to clean it up. Garbage will be deposited in designated places.

3. The explosion is expected to cause tremors in a radius of 30 meters for a few seconds. According to the authorities, the intensity of these tremors can be around 30 mm per second, similar to an earthquake measuring 0.4 on the Richter scale. Authorities say structures in Noida are built to withstand six earthquakes.

4. Around 7,000 residents of the area have been evacuated. Gas and electricity supplies to nearby buildings have been cut off. They will be reinstated at 4 p.m. m. and residents will be able to return at 5:30 p.m. m. Police have asked residents to wear masks indoors when allowed to return to their homes due to the dust caused by the blast.

5. Traffic on both sides of the blast will stop for half an hour, 15 minutes from 2:15 p.m. to 2:45 p.m., within the 450-meter prohibition zone, on the Greater Noida Expressway, officials said. In Sector 93A, a detour has been made on the tracks leading to the Twin Towers.

6. Some of the surrounding buildings are less than 8 meters from the Twin Towers. There are others less than 12 meters away. They are covered with a special cloth to reduce the entry of dust. The area has been declared a one-nautical-mile no-fly zone.

7. The demolition exercise will be subject to an insurance policy of ₹100 million rupees. This should cover damage, if any, to adjacent buildings. Supertech will bear the premium and other costs. While the cost of the demolition project could exceed Rs 20 crore, the damage to the towers, skeleton that they were, is estimated at more than Rs 50 crore.

8. Mumbai-based Edphis Engineering was commissioned to demolish two towers after a nine-year legal battle. It works closely with the Central Buildings Research Institute and Noida authorities to tear down the towers after the Supreme Court ruled that their construction on the Emerald Court Society campus violated regulations. With an hour to go before demolition, the real estate agent insisted there was “no deviation” from the construction plan.

9. The builder had planned to build 40 stories in each tower. While some of the flats could not be built due to a court order, some were manually demolished before the blast. One of the towers, the Apex, now has 32 stories. The other is 29. While the vertex is 103 meters high, the Cayenne stands at 97. The plan was to have more than 900 flats, of which two-thirds were reserved or sold. The Supreme Court has ordered the developer to return the money and interest to those who bought flats in the structure.

10. The Twin Towers are being demolished after a legal battle that lasted nine years. Residents of the Supertech Emerald Court Society moved to the court in 2012 after these towers were approved as part of a revised construction plan. He said the towers were built where the garden was initially planned. Errors were found in the approvals, and some officials had to face action. The Allahabad High Court had ordered the demolition in 2014. The matter then went to the Supreme Court. Last August, the court had given three months to demolish the towers, but due to technical difficulties, it took a year.

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