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Hydraulic galleries, like conduits and canals, are part of water conveyance structures and enable water to be transported from an intake point to a point of use or discharge. They can operate under pressure or with free-surface flow, depending on the characteristics of the site and the project.
The monitoring, maintenance, renovation and construction of these galleries involve several disciplines: geology, hydrogeology, hydraulics and civil engineering. Aware of this challenge, HYDROSTADIUM has developed specific expertise and diagnostic and decision-support tools for this type of structure since 2010.
The company has expanded its experience through numerous projects, some of which involved innovative techniques in complex geological contexts. These technically rich projects have been presented at specialist conferences.
Hydrostadium is now able to work on all types of hydraulic tunnels, ranging from 80 cm to several metres in diameter and from a few metres to several kilometres in length, under pressure or with a free surface, lined or left in their excavated state.
Whether carrying out an assessment of existing tunnels defining and monitoring a rehabilitation programme, or designing new structures, Hydrostadium can undertake all types of assignments and work in all configurations. Over the course of its projects, the company has also developed a network of partners with recognised expertise in carrying out work in hydraulic tunnels.
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Main technical features The ASASP development, commissioned in 1962, is located in the Gave d’Aspe valley, upstream of the municipality of Asasp. The intake for the ASASP power plant is located...
Refurbishment of the civil engineering works of the Gyronde gallery. Main technical features The L’Argentière power plant is supplied with water by two intakes. One is located on the Durance,...
Repair and reinforcement works on the headrace galleries of the Banca development; reconstruction of reinforced-concrete rings, grouting, crack repair and surface levelling. Main technical...
Repair of 2 sections of the gallery, each 35 lm long, to ensure the gallery’s watertightness and mechanical continuity. Main technical features Gallery lined over 30 cm with...
Repair of the headrace tunnel of the Breil development. Main technical features Pressurized tunnel, 2,974 ml long, with an internal diameter of 2.8 m; surge shaft with an internal...
