Here's What MMRCL Is Doing To Avoid Damage To Heritage Buildings In South Mumbai

In order to ensure that there are no vibrations in the heritage buildings, MMRCL is in the process of procuring special track components for the fully underground Metro-3 line.

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The Metro 3 (Colaba-Bandra-Seepz) project of Mumbai Metro Railway Corporation Limited (MMRCL) has always been in the headlines for all the wrong reasons. In November 2019, two buildings in Mahim allegedly developed cracks due to the Metro construction work at Sitladevi Metro station. Moreover, in 2017, J.N. Petit school, which is near Chhatrapati Shivaji Maharaj Terminus (CSMT) filed a petition in Bombay High Court and alleged that some ornamental features in their heritage building had collapsed due to the vibrations from the construction work. 

There are many heritage building in South Mumbai especially in the CSMT-Cuffe Parade stretch where the majority of the construction work is underway. In order to ensure that there are no vibrations in these buildings, MMRCL  is in the process of procuring special track components for the fully underground Metro-3 line. 

Also Read: MMRCL completes 87 per cent of excavation work for Metro 3

In a first of its kind initiative in the country, MMRCL will have twin-block sleepers. A sleeper is rectangular support between the rails on the track. A regular railway track has only one continuous sleeper between two rails. For Metro-3, the twin-block sleepers are designed with concrete blocks, which will have a rubber boot fitted with resilient pads to absorb the vibrations. 

MMRCL Director S.K. Gupta stated that a regular Metro track can absorb around 5 to 7 Vdb [vibration measurement], while the upcoming system can absorb 22Vdb over and above the 5-7 Vdb. It is also easier to undertake the maintenance of these components. The track-laying work is expected to start by June 2020. 

Also Read: Not just Metro 3 & Bullet train, other projects also to be scrutinized by Uddhav govt


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