A month after the Bengaluru Metro reinforcement cage collapsed, which led to the loss of life of a girl and her toddler son, the Bangalore Metro Rail Company Restricted (BMRCL) has issued tips for development work within the metropolis, officers stated on Thursday.
The BMRCL has formulated the brand new commonplace working procedures (SOPs) based mostly on the suggestions within the research report by the consultants of the Indian Institute of Science (IISc) and likewise sought suggestions from the consultants.
The BMRCL stated that these tips needs to be adopted whereas finishing up the ‘Namma Metro’ work anyplace within the metropolis, in accordance with officers.
On January 10, the reinforcement cage of pier quantity 218 of the KR Puram-Airport metro line collapsed on a motorbike, killing two folks close to HBR Format within the metropolis.
9 folks, together with the development firm Nagarjuna Building Firm (NCC), had been named within the FIR filed by the police on January 11.
The BMRCL, dealing with flak over the incident, had roped in IISc to research the rationale behind the mishap. IISc discovered that insufficient assist construction for the tall reinforcement cage was the principle cause behind the collapse.
Prof J M Chandra Kishen of the civil engineering division at IISc, who performed the inquiry, and submitted the report back to the BMRCL on January 21, stated on Thursday that the SOPs have been made relating to the development of the metro pillars. The pillars have been categorized into three teams, based mostly on their peak, relying on which development needs to be carried out.
“Now that particularly on Outer Ring Highway (ORR), there are various different flyovers that are adjoining to the metro development, the pillars can be of various heights. So, we have now categorized the pillars into three teams, 0-12 m, 12-20 m and past 20 m,” Prof Kishen stated.
“For these three classifications, they’ve recommended how the development ought to happen. For 0-12, it needs to be carried out in a single stage, that’s concreting. For 12-20, the development needs to be carried out in two phases, and past 20 m, it needs to be carried out in three phases,” Prof Kishen stated.
Earlier, there have been no classifications for the pillars, which have been launched based mostly on peak. Earlier than, the concreting was purported to be carried out in a single stage itself, however now, it is going to be carried out in numerous phases relying on the peak, Prof Kishen defined.
The SOPs additionally embrace different security precautions, together with supporting mechanisms and step-by-step procedures. “The BMRCL had despatched the proposal, and we have now made some additions to it to extend the security and despatched it again. I obtained a mail saying the recommendations can be included and brought ahead,” Prof. Kishen stated.
The suggestions embrace these which must be instantly applied and people which needs to be included to extend security not only for these pillars, however on the whole work going ahead.
Prof Kishen stated that such mishaps could be prevented going ahead if take these security precautions are taken. “Usually, in a lot of these constructions, you may’t cordon off the world or shut the street because of visitors. There are pillars each 25 meters. In the event you cordon off the world, the place will the visitors go? There’s a excessive density of visitors, and it is rather troublesome. The one method is for folks to be very watchful and take utmost precautions,” he stated.
After the incident, city consultants had earlier, blamed the callousness of the authorities and stated the incident may have been prevented with correct supervision and had the world been restricted for visitors motion.
The SOPs additionally point out {that a} skilled individual or personnel ought to supervise the work. “They may plan common coaching programmes and programs going ahead,” prof Kishen stated.
The SOPs additionally come within the backdrop of the BMRCL Workers Union writing a letter to chief minister Basavaraj Bommai, demanding impartial high quality inspection of metro works within the metropolis. Suryanarayan Murthy, the vice chairman of the BMRCL Workers Union, in a letter dated February 6, demanded a high quality verify of all pillars of BMRCL by consultants from the IISc and IIT, who qualify as metro, civil and development actions.
Alleging that the metro pillar collapse occurred because of negligence of the contractor and the managing director of BMRCL, and poor high quality of civil work, Murthy stated that the BMRCL administration didn’t comply with the security precautions specified within the contract.