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Miniera / Gallerie - San Francisco Tunnel Los Bronces Access Protection 2018

South Portal, Line 1 (60 m SL150)

Miniera / Gallerie - San Francisco Tunnel Los Bronces Access Protection 2018

Engineering study

Miniera / Gallerie - San Francisco Tunnel Los Bronces Access Protection 2018

General view, South Sector

Miniera / Gallerie - San Francisco Tunnel Los Bronces Access Protection 2018

South Portal Line (60 m SL150)

Miniera / Gallerie - San Francisco Tunnel Los Bronces Access Protection 2018

South Portal line 2 (114 m SL150)

Miniera / Gallerie - San Francisco Tunnel Los Bronces Access Protection 2018

Work in progress, South Portal line 1

Miniera / Gallerie - San Francisco Tunnel Los Bronces Access Protection 2018

Work in progress, South Portal line 2

Miniera / Gallerie - San Francisco Tunnel Los Bronces Access Protection 2018

General view, north sector

Miniera / Gallerie - San Francisco Tunnel Los Bronces Access Protection 2018

First works North Portal

Miniera / Gallerie - San Francisco Tunnel Los Bronces Access Protection 2018

Work in progress, North Portal

Miniera / Gallerie - San Francisco Tunnel Los Bronces Access Protection 2018

North Portal barrier (66 m, SL150)

 

Sistemi:

 

Anno di installazione:

2018

Situazione

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.

Descrizione

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.

Paese / Regione

Chile

Cliente

Anglo American - Los Bronces

Progettazione:

Geotest

Contraente:

Pucará

Oggetto protetto

Cava / Miniera, Infrastrutture, Altri

Protezione dalla corrosione

GEOBRUGG SUPERCOATING

Il contatto locale

René Müller
   

René Müller

Country Manager Western Switzerland

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Sistema di monitoraggio da remoto
Geobrugg AG,Industriestrasse 21,5200 Brugg / Svizzera Country Manager Western Switzerland

E-mail

Olivia Sartorius
   

Olivia Sartorius

Project Manager Sales Eastern and Central Switzerland

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Sistema di monitoraggio da remoto
Geobrugg AG Project Manager Sales Eastern and Central Switzerland

E-mail

Isacco Toffoletto
   

Isacco Toffoletto

Country Manager Southern Switzerland

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Sistema di monitoraggio da remoto
Geobrugg AG Ticino,Via Brusada 5,6933 Muzzano / Svizzera Country Manager Southern Switzerland

E-mail