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San Francisco Tunnel Los Bronces Access Protection

Hangmuren- und Murgangschutz - San Francisco Tunnel Los Bronces Access Protection 2018

South Portal, Line 1 (60 m SL150)

Hangmuren- und Murgangschutz - San Francisco Tunnel Los Bronces Access Protection 2018

Engineering study

Hangmuren- und Murgangschutz - San Francisco Tunnel Los Bronces Access Protection 2018

General view, South Sector

Hangmuren- und Murgangschutz - San Francisco Tunnel Los Bronces Access Protection 2018

South Portal Line (60 m SL150)

Hangmuren- und Murgangschutz - San Francisco Tunnel Los Bronces Access Protection 2018

South Portal line 2 (114 m SL150)

Hangmuren- und Murgangschutz - San Francisco Tunnel Los Bronces Access Protection 2018

Work in progress, South Portal line 1

Hangmuren- und Murgangschutz - San Francisco Tunnel Los Bronces Access Protection 2018

Work in progress, South Portal line 2

Hangmuren- und Murgangschutz - San Francisco Tunnel Los Bronces Access Protection 2018

General view, north sector

Hangmuren- und Murgangschutz - San Francisco Tunnel Los Bronces Access Protection 2018

First works North Portal

Hangmuren- und Murgangschutz - San Francisco Tunnel Los Bronces Access Protection 2018

Work in progress, North Portal

Hangmuren- und Murgangschutz - San Francisco Tunnel Los Bronces Access Protection 2018

North Portal barrier (66 m, SL150)

 

Systeme

 

Systemlänge

- 240 m

 

Installationsjahr

2018

Ausgangslage

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.

Massnahme

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.

Kunde

Anglo American - Los Bronces

Planer

Geotest

Ausführende Firma

Pucará

Geschützte Objekte

Steinbruch / Bergbau, Infrastruktur, Sonstige

Korrosionsschutz

GEOBRUGG SUPERCOATING

Ansprechpartner

Kevin Coyle
 

Kevin Coyle

Regional Manager Northeast

Naturgefahren
Uferschutz/Wasserbau
Geobrugg North America, LLC,3 Beaudet Terr,CT 06237 Columbia / USA Regional Manager Northeast

E-Mail

Saleh Feidi
 

Saleh Feidi

Naturgefahren
Uferschutz/Wasserbau
Geobrugg North America, LLC,8921 Emperor Ave.,91775 San Gabriel, California / USA

E-Mail

John Kalejta
 

John Kalejta

Naturgefahren
Uferschutz/Wasserbau
Geobrugg North America, LLC,KS 67226 Wichita / USA

E-Mail

Bob Lyne
 

Bob Lyne

Naturgefahren
Uferschutz/Wasserbau
Geobrugg North America, LLC,8004 Windspray Drive,NC 27358 Summerfield / USA

E-Mail

Pierce Runnels, Civil Engineer
   

Pierce Runnels

General Manager Geobrugg North America

Naturgefahren
Geobrugg North America, LLC,22 Centro Algodones,NM 87001 Algodones / USA , Civil Engineer General Manager Geobrugg North America

E-Mail

Tim Shevlin
 

Tim Shevlin

Naturgefahren
Geobrugg North America, LLC,OR 97302 Salem / USA

E-Mail