Hydroelectric Power Plant Tunnel 2014 - Geobrugg Hydroelectric Power Plant Tunnel 2014 - Geobrugg
Hydroelectric Power Plant Tunnel 2014 - Geobrugg Hydroelectric Power Plant Tunnel 2014 - Geobrugg
Hydroelectric Power Plant Tunnel 2014 - Geobrugg Hydroelectric Power Plant Tunnel 2014 - Geobrugg
Hydroelectric Power Plant Tunnel 2014 - Geobrugg Hydroelectric Power Plant Tunnel 2014 - Geobrugg
Hydroelectric Power Plant Tunnel 2014 - Geobrugg Hydroelectric Power Plant Tunnel 2014 - Geobrugg

Hydroelectric Power Plant Tunnel

   Partager
Ville
-
Pays / Région
Pérou
Année d’installation
2014
Client
-
Objet protégé
D'autres
Systèmes
MINAX® 80/4, MESHA®
Protection anticorrosion
GEOBRUGG SUPERCOATING®
Zone stabilisée
5000 m²
Longueur de clou
2 m - 4 m
Schéma de clou a
1.5 m / 1.5 m
Situation de départ

During construction of the headrace tunnel in July 2012 for a hydro power plant some severe rockburst occured. The high internal stress in the rock and overburden over 1000 m on top of the tunnel as well as the brittle metamophic character with a rock mass rating RMR › 65 caused some severe problems during the project.

Description

The tunnel was divided in sectors to analyse the stress level in regard to the high stress classification whereas it shows that some rockbursts of level 2 and 3 occured. In the most critical zone a support system with MINAX® 80/4 was applied in combination with mechanized installation thanks to Geobrugg's MESHA® handler. The installation time had been decreased between 20 to 25% and safety for workes was significantly improved.

Votre contact local

Erik Rorem
Erik Rorem
Business Development Manager Geobrugg North America
Exploitation minière / Tunnel
Geobrugg North America, LLC
22 Centro Algodones
Téléphone +1 505 690 7144

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