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A first in France: telescoping of large diameter pipes

09/10/2017

La Meije Hydroelectric Power Plant (Hautes-Alpes Department of France)

A first in France: telescoping of large diameter pipes!

Saint-Gobain PAM and its partners have proposed a special previously unused solution - telescoping of large diameter pipes -, for the construction of La Meije Hydroelectric Power Plant (Hautes-Alpes). The objective is to insert DN 1400 pipes into DN 1600 pipes. A difficult operation, which aims to reduce transport costs by 40 %. A total of almost 3,200 tonnes of pipes and fittings will be sent to the site. This is the first time that such a telescoping operation has been performed on large diameter ductile cast iron pipes.

A first in France: telescoping of large diameter pipes
Caption: 
La Meije Hydroelectric Power Plant (Hautes-Alpes Department of France)
La Meije Hydroelectric Power Plant (Hautes-Alpes Department of France)
Caption: 
Telescoping of large diameter pipes

A 4.2-kilometre long penstock will connect a water intake at an elevation of 1,431 metres to La Meije hydroelectric power plant 1,318 metres below. The drop height will be 113 metres and the maximum flow 4 m3/s. The installed electrical power will be 3,570 kW for an average annual production of 13,580 MWh, which is equivalent to the electricity consumption of 5,000 households.

Commissioning of La Meije hydroelectric power plant is planned for 2019.
 
For further details, please download our press release below.
 

Images

A first in France: telescoping of large diameter pipes
La Meije Hydroelectric Power Plant (Hautes-Alpes Department of France)
La Meije Hydroelectric Power Plant (Hautes-Alpes Department of France)
Telescoping of large diameter pipes
La Meije Hydroelectric Power Plant (Hautes-Alpes Department of France)
Telescoping, a solution with a future
La Meije Hydroelectric Power Plant (Hautes-Alpes Department of France)
A strong commitment towards the environment

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