Grand Paris Metro Dewatering

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Grand Paris Express is one of Europe's most expensive tunneling projects in progress.

At the new Le Vert de Maisons Station, a high-head delivery system is required to effectively handle the dewatering process throughout the tunnel's construction phase.

Contractor: Tsurumi France
Tsurumi support: Apart from assessing the best methods/models, Tsurumi Europe offered on-site training, providing the maintenance team with practical insights to maximize the longevity of Tsurumi pumps.

The problem

By design few pumps must be able to pump water to a high head.

The solution

To meet this demand, three Tsurumi LH622 units were deployed.

Specifications LH

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear can take place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the working conditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.

In this regard, please pay attention to our general terms and conditions that we also send to you by mail on request.