The detonator switch that will set off the collapse of Apex & Ceyane will be pressed at 2.30pm on Sunday NOIDA: The team of blasters working at the Supertech twin towers said on Thursday they had finished connecting the charges on all floors, completing the circuit that will enable synchronised blasts to bring the two buildings down on Sunday. The circuit will be connected to a detonator only on that day. On Thursday morning, as nearly 1,400 families in Emerald Court – the twin towers’ compound – and the adjacent ATS Greens Village prepare to evacuate their flats for the demolition, all agencies coordinating the exercise met for one final time to review preparations and compliances. The meeting, which was held at Emerald Court, was attended by officials of Noida Authority, Central Building Research Institute (CBRI), Edifice Engineering, police, the National Disaster Response Force (NDRF) and the pollution control board, besides representatives of nearby residential societies in Sector 93A. Noida Authority CEO Ritu Maheshwari, who met the team of blasters from Edifice and Jet at the twin towers on Thursday evening, confirmed that the demolition would go ahead as scheduled, at 2.30pm on Sunday. After the towers -Apex and Ceyane – are brought down, the Noida Authority will share data on air quality with residents, who have been concerned about dust pollution in the aftermath of the towers’ collapse and unsure if it will be safe for them to return to their homes that afternoon. “Residents have raised concerns about the dust cloud and air pollution in the area after demolition. Monitoring devices are being installed near the towers and its data will be shared with residents,” Maheshwari said. Cracks that already exist in buildings of Emerald Court will be monitored through crack gauges that will be installed by Saturday. This data will also be shared with residents, the Noida CEO said. Edifice project manager Mayur Mehta, one of the 10-member squad of blasters working at the twin towers at present, said, “We are all set to implode the buildings on Sunday. The connections between explosives from one floor to another was completed on Thursday. We have all the clearances with us.” However, repair and retrofitting of 57 damaged columns in Emerald Court’s basements that are within a 50-metre radius of the twin towers are yet to be completed. Sixteen of these columns were critically damaged, of which 10 have been repaired. For the remaining six, CBRI suggested injecting grouting – filling columns with grout mix – followed by carbon fibre reinforcement wrapping. Officials said the work would be completed by Friday. The eleventh-hour retrofitting for a problem residents flagged last year after the Supreme Court ordered the towers demolished in August has left many within Emerald Court unhappy. For them, it typifies the coordination gaps that were seen through the course of the exercise, which led to the demolition being postponed by a week from the original schedule of August 21. The debris management plan is also yet to be submitted by Edifice. Maheshwari said the company’s suggestion to use a plot of agricultural land as a landfill has been rejected. It was earlier reported that the towers’ implosion will generate 60,000 tonnes of rubble but the Authority CEO said it would be 80,000 tonnes. “There will be about 80000 tonnes of debris, out of which 55,000 tonnes will be used at the twin towers site for levelling purposes. The remaining will be most likely sent to our C&D processing plant in Sector 80,” said. FOLLOW US ON SOCIAL MEDIAFacebookTwitterInstagramKOO APPYOUTUBE
Source: https://timesofindia.indiatimes.com/city/noida/noida-explosives-on-all-floors-connected-supertech-twin-towers-ready-for-demolition-day/articleshow/93787000.cms