The work carried out is part of the Alfalfal Hydropower Plant tunnel system which is located in the Rio Olivares basin, 70 km southeast of Santiago de Chile
Two main areas were involved: underground works and associated works
18.000 m3
Concrete
100.000 m3
Excavation
5, 4 km
Tunnel
30.000 m3
Filling
PROJECT
The Olivares tunnel and associated works, Alfalfal Hydropower Project, Olivares River basin, Maipo Valley, Chile.
CLIENT
Compañía Chilena de Generación Eléctrica S.A.
DESCRIPTION OF WORKS
The work carried out is part of the Alfalfal Hydropower Plant tunnel system which is located in the Olivares River basin, which is a tributary of the Colorado River, 70 km southeast of Santiago de Chile
The project involved building the intake infrastructure and conduits for the water from the Olivares River and its tributary, the Arroyo La Jarilla, both making up the Colorado River basin.
Two main areas were involved: underground works and associated works
The underground works consisted of digging a 5.4 km tunnel in sections of between 10 and 17 m2 and digging the vertical well of La Jarilla which was 150 m long and 4 m2 across. The associated works involved building the Olivares
