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Home > Surat Metro accepts another EPBM

Surat Metro accepts another EPBM

Tris Thomas

Written by Tris Thomas on 31/01/2022 in News

Tagged: EPBM,Surat Metro Project,Terratec

TERRATEC has announced the delivery of another EPBM to the Gulermak-Sam India JV for use on the Surat Metro Project in India. This unit is a new 6.61m diameter EPBM that will be used on Phase I of project following successful factory acceptance earlier this month.

S94 220110 DJ 14

The TBM supplier has secured all machine orders for this project: A combination of both brand new and refurbished EPBMs will be used. For Package UG-01, Gulermak will use a brand new EPBM and a refurbished TBM and for Package UG-02, JKumar will use two refurbished TBMs.

The Surat Metro is an under-construction rapid transit rail system for Surat in the Gujarat state of India. Two corridors with a combined length of 40.35km have been under construction since January 2021. The project is expected to be completed by December 2023. The new TBM will now be transported to India, and then reassembled on-site with the help of TERRATEC field service team.

The geological conditions along the tunnel alignments will be sand, clay, gravel and silt. A twin bored tunnel will be built between the Northern ramp and Surat Railway Metro station, using all cut and cover method across six underground stations. For Package UG-01, it covers Kapodra, Labheshwar Chowk and Central Warehouse stations. For Package UG-02, it covers Chowk Bazar, Maskati Hospital and Surat Railway stations.

This latest new TBM will be used to complete the tunnelling works for Phase-I of Surat Metro Rail Project. Package UG-01 and Package UG-02 consist of a 7km underground tunnel and six underground stations.

The EPBM units have robust mixed-face dome-style cutterheads designed to work effectively in the soil composed of sand, clay, gravel and silt. As the TBMs progress, they will install 1,500mm wide by 275mm thick pre-cast concrete lining rings, which consist of five segments plus a key.

TERRATEC has designed the CutterHead to allow the cutting tools to be exchangeable for 17’’ disc cutters, allowing the TBM to be able to bore through the D-walls and cope with the presence of any unexpected obstacle on its way, such as old wells or foundations.

Muck removal, segment transport and logistics supply will be via locomotive and muck cars.

Surat is a city in the Western Indian state of Gujarat and is one of the world’s fastest growing cities. In Phase 1, 20 metro stations will be built on the first corridor from Sarthana to DREAM City route and 18 metro stations will be built on the second corridor from Bhesan to Saroli.

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