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Home > Terratec EPBM bound for Mumbai Sewer Project

Terratec EPBM bound for Mumbai Sewer Project

Tris Thomas

Written by Tris Thomas on 04/09/2020 in News

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Terratec is to deploy a new 3.14m diameter EPBM on the Mumbai Sewer Disposal Project (MSDP) Stage-II Priority Works Project, in Mumbai, India. The machine will be used by contractor Michigan Engineers Pvt. Ltd. for Municipal Corporation of Greater Mumbai (MCGM). Following the successful factory acceptance test, the machine will be shipped to Mumbai and transported to the project site where it will be launched on its first 1,857m-long drive.

Designed to provide a healthier and improved environment for the citizens of Mumbai, MSDP Project is one of a series of sewage projects being undertaken by the MCGM, which are being built to meet and improve the quality and reliability of the wastewater collection, treatment and disposal infrastructure for the ever-growing population.

The EPBM is designed to cope with varied geological conditions along the tunnel alignments consisting of mixed ground, basalt and breccia. The TBM has 25 rings of 17” rear replaceable disc cutters and a high torque main drive that is still capable of rotating up to 5 rpm. The TBM is equipped with a fully active articulation system to accommodate a minimum curve radius of 250m. Due to size constraints and the installation of a full hyperbaric man lock the machine’s main drive is hydraulic.

The 4+1 universal type segment design, (200mm thick by 1000mm long) reinforced concrete segments will be installed as the machine progresses by the mechanically actuated erector. Muck removal, segment transport and machine supply will be by rolling stock and battery locomotives.

“It’s a proud moment to take delivery of our first 3m plus machine to add to our fleet of over ten microtunelling machines.” said Saurin Patel, Managing Director of Michigan Engineers Pvt. Ltd.

The works of MSDP Stage-II are divided in five phases and those in the first two phases are called ‘Priority Works’. The MSDP Stage II – Priority Works are comprised of infrastructure components including expansion of sewage collection networks, new pumping stations, waste water treatment facilities and treated effluent disposal.

The order sees TERRATEC celebrate the delivery of its 25th machine to India in the last eight years, to add to the long list of previously deployed machines to construct key Metro, Sewer and Hydroelectric Projects in the Country, which have successfully completed so far over 58km of tunnelling.

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