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San Francisco Tunnel Los Bronces Access Protection

Protezione contro frane e colate detritiche - San Francisco Tunnel Los Bronces Access Protection 2018

South Portal, Line 1 (60 m SL150)

Protezione contro frane e colate detritiche - San Francisco Tunnel Los Bronces Access Protection 2018

Engineering study

Protezione contro frane e colate detritiche - San Francisco Tunnel Los Bronces Access Protection 2018

General view, South Sector

Protezione contro frane e colate detritiche - San Francisco Tunnel Los Bronces Access Protection 2018

South Portal Line (60 m SL150)

Protezione contro frane e colate detritiche - San Francisco Tunnel Los Bronces Access Protection 2018

South Portal line 2 (114 m SL150)

Protezione contro frane e colate detritiche - San Francisco Tunnel Los Bronces Access Protection 2018

Work in progress, South Portal line 1

Protezione contro frane e colate detritiche - San Francisco Tunnel Los Bronces Access Protection 2018

Work in progress, South Portal line 2

Protezione contro frane e colate detritiche - San Francisco Tunnel Los Bronces Access Protection 2018

General view, north sector

Protezione contro frane e colate detritiche - San Francisco Tunnel Los Bronces Access Protection 2018

First works North Portal

Protezione contro frane e colate detritiche - San Francisco Tunnel Los Bronces Access Protection 2018

Work in progress, North Portal

Protezione contro frane e colate detritiche - San Francisco Tunnel Los Bronces Access Protection 2018

North Portal barrier (66 m, SL150)

 

Sistemi

 

Lunghezza del sistema

- 240 m

 

Anno di installazione

2018

Situazione iniziale

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.

Cliente

Anglo American - Los Bronces

Progettazione:

Geotest

Contraente:

Pucará

Oggetto protetto

Cava / Miniera, Infrastrutture, Altri

Protezione dalla corrosione

GEOBRUGG SUPERCOATING

Il contatto locale

Roger Moor
   

Roger Moor

Country Manager Ost- und Zentralschweiz, Liechtenstein

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Svizzera Country Manager Ost- und Zentralschweiz, Liechtenstein

E-mail

René Müller
   

René Müller

Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Geobrugg AG,Industriestrasse 21,5200 Brugg / Svizzera Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

E-mail

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Sistemi contro il dissesto idrogeologico
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Svizzera Project Manager Inspection Services

E-mail

Isacco Toffoletto
   

Isacco Toffoletto

Ticino Country Manager

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Geobrugg AG Ticino,Stabile Cometal, via Pizzante 7,6595 Riazzino / Svizzera Ticino Country Manager

E-mail