Delhi Metro Rail Corporation is serving a show-cause notice to contractor Gammon India, which was carrying out work at the Zamrudpur accident site, and suspending two engineers.
Putting the blame on "deficiency" in design and material for the July 12 mishap which claimed six lives, Delhi Metro Rail Corporation (DMRC) today claimed that a design consultant firm that inspected the site "misled" them and the contractor about the condition of the pier which collapsed.
The DMRC is also serving a show-cause notice to contractor Gammon India, which was carrying out work at Zamrudpur accident site, to explain why it should not be
blacklisted for two years, besides suspending its two deputy chief engineers.
It also blacklisted Arch Consultant, design consultant for Gammon India, for five years besides issuing a "major penalty chargesheet" to chief engineer (design) Rajan Kataria.
Making the findings of a probe into the Zamrudpur accident public, Delhi Metro chief E Sreedharan said Tandon Constructions were appointed by them to inspect the site after
cracks were reported.
"The crack on Pier 67 was first noticed on April 1, and we approached them on April 3. They gave us a report on April 15 saying that there was no inadequacy in the design.
The consultant misled the DMRC and contractor," Sreedharan said at a press conference.
The DMRC board of directors, which met here yesterday to study the report of the three-member panel headed by IIT professor AK Nagpal, decided to blacklist Tandon Construction for two years.
According to the report, Sreedharan said, the design of the cantilever pier which collapsed in Zamrudpur was not adequately taken care of. "There was a deficiency of steel at critical areas besides a major deficiency in reinforcement detailing," he
said. On the strength of the concrete, he said it "failed in strength criteria by a wide margin" though the quality of the materials used were of acceptable levels.
Sreedharan said the accident had resulted in a three-month delay in the completion of the Noida line, but expressed confidence that all Phase II projects would be completed before the Commonwealth Games next year. "We will finish all the projects linked to phase II before the commencement of the Commonwealth Games 2010," he said.
Earlier in the day, urban development minister S Jaipal Reddy informed the Lok Sabha that the collapse of a launching girder and a portion of a viaduct were caused by "serious deficiency" in the design of the cantilever arm, and that the concrete did not have "adequate strength probably due to lack of adequate curing."
Sreedharan said the DMRC will now insist on a second-level of quality and safety assurance for its works.
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