NFM Technologies

For more than 20 years, NFM Technologies has been designing and manufacturing large diameter tunnel boring machines ranging from 4 m to more than 15 m, suited to all types of geology. The French company produces efficient and reliable  tunnelling-technologyworldwide references and is known for efficient and reliable machines. The World Tunnel Congress 2014 in Brazil will be a good opportunity to highlight the company’s latest projects including the 15.08 m diameter EPB TBM for the Italian Caltanissetta Highway project in Sicily. The mega-machine will excavate the 4 km twin-tube tunnel as much...

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Issue 04/2020 Italy | Italien

Santa Lucia Tunnel: Breakthrough for Europe‘s Biggest TBM

In Italy, the largest tunnel boring machine ever used in Europe successfully completed its drive at the Santa Lucia Tunnel on June 8, 2020. The supersize borer (Earth Pressure Balance Shield, diameter...

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Issue 02/2015

Waterview Connection Tunnels Auckland: TBM Design and Tunnelling Experiences

Introduction For New Zealand’s largest road infrastructure project, the Waterview Connection in Auckland, one of the world’s largest TBMs successfully finished the excavation of the first of two...

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Issue 04/2011 Switzerland

Biel east bypass link: TBM tunnelling and the Längholz Tunnel

The Autobahn A5 Biel bypass in the Canton of Bern closes one of the last remaining gaps in Switzerland‘s national road system, and is subdivided into a west and an east link, both around 5?km in...

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Issue 07/2012

Reducing the Cutterhead Wear at EPB Tunnel Boring Machines

Large boulders, abrasive ground, and continuous mixed face conditions: It’s a perfect storm that can maximize wear on an EPB cutterhead and result in increased downtime or even cost overruns. This...

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Issue 01/2021 India

TBM Excavation Begins for Delhi Metro Phase 4

A refurbished Terratec Earth Pressure Balance (EPB) Tunnel Boring Machine has been delivered to a joint venture between Hindustan Construction Company Ltd. of India (HCC) and Vensar Constructions...

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