BMRCL Alters Standard Operating Procedure Following Report on Pillars’ Collapse

The construction of pillars over 12 metres will be halted in the 2A and 2B Metro phases linking Central Silk Board and Kempegowda International Airport.

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Bangalore Metro Rail
Bangalore Metro Rail/ Representational Image
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BANGALORE (Metro Rail News): In response to the report submitted by Professor Chandra Kishen of the IISc on the collapse of the reinforcement cage on January 10, the BMRCL has altered their standard operating procedure of casting the reinforcement cage.

Anjum Parvez, the managing director of BMRCL, announced that the construction of pillars over 12 metres would be halted in the 2A and 2B Metro phases linking Central Silk Board and Kempegowda International Airport.

Parvez stated, “We are changing to two-stage casting for pillars taller than 12 metres. Additionally, we have suspended work on all reinforcement cages above 12 metres. However, work on reinforcement cages under 12 metres is still being done.”

Prof Kishen, who submitted a 27-page report to BMRCL, averred that the 18-metre structure which led to the deaths of a mother and her son was not a single component but consisted of two parts that were overlapping.

He clarified that the combination of the overlapping structure and the preliminary design of the supporting reinforcement cage caused the entire 18-metre reinforcement structure to come down. Parvez added that improvements to the standard operating procedures for constructing the pillars would be put into effect according to the report from IISc, such as switching to a two-stage casting process and concretising the structure as soon as possible.

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