After Bengaluru Horror, Metro Pillars To Be Constructed With Two-Stage Reinforcement And Concretising

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Bangalore Metro Rail Corporation Limited (BMRCL) will mandate construction of tall metro pillars with two-stage reinforcement and concretising.

Bengaluru-metro-pillar
Bengaluru metro pillar construction will get new guidelines.

Bengaluru: The Bangalore Metro Rail Corporation Limited (BMRCL) is planning to issue fresh guidelines that will mandate a two-stage reinforcement and concretising for construction of metro pillars in order to avoid accidents. This is in the wake of an under-construction 18-metre-tall reinforcement structure of a metro pillar that fell on a bike, killing a mother-son duo, along the K. R. Puram – airport line on January 10.

As per the procedure now being followed, workers create a 1-metre high concrete base on which they erect the iron reinforcement for pillar ranging in height from 12-23 metres, and tie them with a guy-wire.

Questions were raised on the height of the pillar by both experts and the family of the deceased in the recent accident. “How could the contractor raise a 18-metre-high pillar without adequate safety precautions? That is what killed my daughter,” alleged Madan Kumar, father of the deceased Tejaswini.

TWO-STAGE CONCRETISING TO BE MADE MANDATORY FOR TALL PILLARS

Anjum Parvez, Managing Director, BMRCL, said the corporation will issue a fresh set of guidelines making two-stage reinforcement and concretising mandatory for all pillars over a height of 12 metres across Bengaluru. “From now on, instead of erecting the reinforcement on a 1-metre concrete base, it has to be done in two stages. For a 18-metre pillar, like the one that crashed on January 10, contractors need to first erect a reinforcement of 9 metres, concretise it and then erect a reinforcement for the second stage of another 9 metres. This way, the second stage of the reinforcement will have a strong base of 9 metres of concrete, preventing it from tilting or crashing,” he explained.

BMRCL has brought down the reinforcement of three other 18-metre-long under-construction pillars on the K. R. Puram – airport line to 12 metres to prevent any further untoward incident. These pillars will also be built in two stages. Post the accident, work on the line has stopped.

“We are in the final stages of drafting the new guidelines and will mostly issue them on January 13. Work will resume across Bengaluru on the basis of the new guidelines from January 16,” Parvez said.

NOT FIRST SUCH INCIDENT

This was not the first time that iron reinforcement for an under-construction metro pillar got bent and dangled dangerously on moving vehicles on the road below. Two workers were injured on CMH Road in 2009, and photographs of similar incidents from HSR Layout and Bellandur have surfaced on Twitter.

Meanwhile, BMRCL has served a notice on Nagarjuna Construction Company (NCC) Limited, the contractor of the airport line. The contractor is yet to respond. The report of an independent study by Indian Institute of Science (IISc.) is also awaited.




Published Date: January 12, 2023 8:02 PM IST





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