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Home > VIP Polymers wins in London and Mumbai

VIP Polymers wins in London and Mumbai

Tris Thomas

Written by Tris Thomas on 28/02/2018 in News

Tagged: Ferrovial Agroman and Laing O'Rourke (FLO JV),Mumbai Metro,Shieldhall wastewater tunnel,Thames Tideway Central,VIP-Polymers Ltd

VIP-Polymers Ltd has won contracts to provide tunnel segment gaskets for two major tunnelling projects in the United Kingdom and India – the 12.7km long Thames Tideway Central and the Mumbai Metro repectively.

Thames Tideway Central is the longest of three sections of a 25km tunnel, due for completion in 2024, designed to prevent the discharge of untreated storm water and sewerage from 34 combined sewer overflows into the tidal River Thames.

VIP is supplying its cast-in gasket referenced VIP028CI with patented corners to tunnel segment pre-caster Pacadar for the section, which will be 12.7km long, with an inner diameter of 7.8m. Supply commenced in December 2017.

A consortium made up of Ferrovial Agroman and Laing O’Rourke (FLO JV) is the main contractor for the central section, which runs from Fulham to Blackfriars and will have 6,100 tunnel segment ring sets.

VIP’s compliant compressible corner technology for cast-in gaskets delivers consistent load performance along the entire perimeter of the gasket. This eliminates the risk of high loads at one or more of the gasket’s corners during installation, which could contribute to segment cracking.

The technology has already been proven on other tunnelling projects, including the 5km Shieldhall wastewater tunnel in Glasgow, commissioned by Scottish Water.

VIP has been commissioned by J Kumar Infraprojects to supply tunnel segment gaskets for the Mumbai Metro Line 3 (Packages 5 and 6) tunnel, which is being built for the Mumbai Metro Rail Corporation, a joint venture between the Indian Government and the Government of Maharashtra.

The project involves the construction of a 4.5km twin tunnel, with an outside diameter of 6.6m, requiring a total of 17,800 tunnel segment ring sets.

Production of the glued-in gaskets selected for the tunnel has already begun at VIP’s factory in Huntingdon.

This latest contract continues VIP’s long-standing position as a major supplier of TSGs in India, having previously supplied four phases of the Delhi Metro project and the Ghatkopar High Level Tunnel in Mumbai.

Matthew Levitt, VIP Technical Business Development Manager, said: “The gasket has been specifically developed as a modification of our VIP024 gasket to provide additional sealing assurance sought by project engineers as the tunnel passes under the Mithi River.”

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