Built for the Blast Zone: Tsurumi Pumps Prove Their Strength in the Lyon–Turin Tunnel

Published on 04.12.2025

While much of the Lyon–Turin tunnel is being excavated using tunnel boring machines, several sections rely on traditional blasting techniques. Here, workers drill deep holes into the rock, fill them with dynamite, and detonate them to advance the tunnel. The loading drill shown in our photo breaks through the rock face, allowing the explosives to be placed precisely.


Each blast, however, brings new challenges: fresh water inflows emerge from the surrounding rock, carrying dust, metal particles, and coarse debris. This mixture must be pumped out continuously to keep the site safe and operational. The conditions are some of the toughest imaginable for any pump:

  • 24/7 continuous duty
  • Occasional dry running
  • Highly abrasive water containing rock and cement particles
  • Strong vibrations and occasional heavy impacts


In this demanding environment, Tsurumi high-performance pumps show exactly why they are trusted worldwide in tunnel construction. They are:

  • Exceptionally durable and high-performing
  • Extremely robust and wear-resistant
  • Simple to service and maintain


Whether you need compact units or high-capacity powerhouses, Tsurumi offers a full range of pumps engineered for the toughest underground conditions.


If you would like expert advice on selecting the right model for your project, just send us a quick message at: sales@tsurumi.eu

- we are here to help!


#stronger4longer #tunnelling #undergroundconstruction #engineering #civilengineering #infrastructure #LyonTurinTunnel #TsurumiPumps


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