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San Francisco Tunnel Los Bronces Access Protection

Los Bronces - Anglo American, Los Bronces - Región Metropolitana, Chile
2018
Promotor
Anglo American - Los Bronces
Empreteiro
Geotest
Contratante
Pucará
Objecto protegido
Pedreira/ Minas, Infra-estrutura, Outros
Altura do sistema
3.5 m
Comprimento do sistema
- 240 m
Proteção contra a corrosão
GEOBRUGG SUPERCOATING
Número de barreiras
3
Capacidade de retenção
16000 m³
Outras aplicações instaladas
Mineração / Túneis
Situação inicial

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.

Descrição

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.

O seu contacto local

Roger Moor
Roger Moor
Country Manager Ost- und Zentralschweiz, Liechtenstein
Riscos naturais, Coastal Erosion Protection, Mineração / Túneis
Geobrugg AG
Aachstrasse 11
8590 Romanshorn / Suíça
Telefone 071 466 81 52
Telemóvel 078 783 46 81

E-mail

René Müller
René Müller
Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS
Riscos naturais, Mineração / Túneis
Geobrugg AG
Industriestrasse 21
5200 Brugg / Suíça
Isacco Toffoletto
Isacco Toffoletto
Ticino Country Manager
Riscos naturais, Mineração / Túneis
Geobrugg AG Ticino
Stabile Cometal, via Pizzante 7
6595 Riazzino / Suíça