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Pradeep Pattanayak

In a matter of seconds, the two towers of the Supertech Twin Tower Project in Noida’s Sector 93-Apex tower (32 floors) and Ceyane (29 floors)-were brought down to dust and rubble. People across the nation and outside as well watched the minute-by-minute live coverage of the demolition. However, most of them may perhaps not be aware of the technique used in pulling down the towers. 

Here is all about technique employed to minimize damage to nearby properties. 

The technique is called ‘waterfall implosion’ technique. 

The technique is then considered when it is wanted that the to-be demolished structure to collapse inwards and onto itself. To make it happen, detonators and explosives are required. But the vital requirement is the knowledge and expertise of identifying supporting structures whose demolition will ensure the collapse of the entire structure onto itself. To make it happen, detonators and explosives are used in a controlled manner, drilling them into these supporting structures. 

Has the technique used before in India?

The ‘waterfall implosion’ technique was used before in India in 2020. To pull down four high-rise buildings at Maradu in Kochi of Kerala, this most sophisticated technique was used. The buildings that have now vanished from the skyline of Kochi were H2O Holly Faith, Alfa Serene, Jain Coral Cove and Golden Kayaloram. 

These four waterfront apartments were razed down for violating environmental norms. They were near Vembanad backwaters. 
Notably, the twin towers in Noida were brought down reportedly for not complying with building and fire safety norms.
 

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