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A company of the BRUGG Group
United States
San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg
San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg
San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg
San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg
San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg
San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg
San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg
San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg
San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg
San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg
San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg San Francisco Tunnel Los Bronces Access Protection 2018 - Geobrugg

San Francisco Tunnel Los Bronces Access Protection

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Street
Los Bronces - Anglo American
Place
Los Bronces - Región Metropolitana
Country/Region
Chile
Year of installation
2018
Customer
Anglo American - Los Bronces
Engineering
Geotest
Contractor
Pucará
Protected object
Quarry / Mine, Infrastructure, Other
Systems
SL-150
System height
3.5 m
System length
- 240 m
Corrosion protection
GEOBRUGG SUPERCOATING®
Number of barriers
3
Retention capacity
16000 m³
Other installed applications
Underground/Open Pit Mining and Quarries
Initial situation

The San Francisco River is one of the main tributaries of the Mapocho River that crosses the city of Santiago. This river originates and passes the surroundings of the mining site Los Bronces de Anglo American, located in the middle of the Andes Mountain Range. Within its route, the river crosses a tunnel that makes a bypass through the old tailings pond of the mining site.

In summer, this sector is prone to rainfall, producing landslides that block the entrance and exit portals of the tunnel, affecting the riverbed and generating a significant environmental impact when it comes into contact with the tailings pond material.

Description

To protect the portals, a long-term plan has been designed. It begins with mitigation works for the landslides that occurred in the vicinity of the portal. For this purpose, an engineering project was initially developed to model the water flows in the streams and then implement a solution with multiple shallow landslide barriers protecting both portals of the tunnel. The barriers will avoid future environmental impacts due to the diversion of the river waters.

Your local contact

Kevin H. Coyle
Kevin H. Coyle
Regional Manager Northeast
Natural Hazards
Geobrugg North America, LLC
3 Beaudet Terr
Columbia CT 06237 / USA
Phone +1 860 377 3230

Contact form

Saleh Feidi
Saleh Feidi
Regional Manager California
Natural Hazards
Geobrugg North America, LLC
8921 Emperor Ave.
San Gabriel, California 91775 / USA
Phone +1 909 706 8964

Contact form

John Kalejta
John Kalejta
Regional Manager Central US
Natural Hazards
Geobrugg North America, LLC
3215 67th Avenue Pl
Greeley CO 80634 / USA
Phone +1 505 220 1404

Contact form

Bob Lyne
Bob Lyne
Regional Manager Southeast
Natural Hazards
Geobrugg North America, LLC
8004 Windspray Drive
Summerfield NC 27358 / USA
Phone +1 336 337 0945

Contact form

Pierce Runnels, Civil Engineer
Pierce Runnels, Civil Engineer
General Manager Geobrugg North America
Natural Hazards
Geobrugg North America, LLC
22 Centro Algodones
Phone +1 505 771 4080
Mobile +1 505 400 0796

Contact form

Tim Shevlin
Tim Shevlin
Sales Director
Natural Hazards
Geobrugg North America, LLC
4676 Commercial St. SE, PMB 174
Salem OR 97302 / USA
Phone +1 503 423 7258

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