Metro brings in international experts to prevent further

International and in-house experts are working on a war-footing to prevent further damage to houses in a part of Central Kolkata where tunnel boring for the East West Metro corridor led to collapse of some buildings and appearance of cracks in several others, a senior official said on Wednesday.

The Kolkata Metro Railway Corporation Ltd (KMRCL) has brought in four international experts to assist the operations to stop further ingress of water and ground settlement that caused extensive damage to the buildings at Bowbazar area.

KMRCL General Manager (administration) A K Nandy said, "Work is on in full swing at the site to prevent any further damage."
Claiming that geotechnical investigation was done to assess the condition of the sub-soil, they said, "The sub-soil in the tunnelling horizon comprises silty sand with water bearing strata, and the possibility of encountering a high pressure-high volume aquifer cannot be ruled out."
Nandy and Dewanjee said KMRCL will reconstruct or repair the damaged buildings, adding that it "will arrange for residential flats in the interim period if the outstay for the families are for a considerable period."