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San Francisco Tunnel Los Bronces Access Protection

토석류 및 산사태 방호 시스템 - San Francisco Tunnel Los Bronces Access Protection 2018

South Portal, Line 1 (60 m SL150)

토석류 및 산사태 방호 시스템 - San Francisco Tunnel Los Bronces Access Protection 2018

Engineering study

토석류 및 산사태 방호 시스템 - San Francisco Tunnel Los Bronces Access Protection 2018

General view, South Sector

토석류 및 산사태 방호 시스템 - San Francisco Tunnel Los Bronces Access Protection 2018

South Portal Line (60 m SL150)

토석류 및 산사태 방호 시스템 - San Francisco Tunnel Los Bronces Access Protection 2018

South Portal line 2 (114 m SL150)

토석류 및 산사태 방호 시스템 - San Francisco Tunnel Los Bronces Access Protection 2018

Work in progress, South Portal line 1

토석류 및 산사태 방호 시스템 - San Francisco Tunnel Los Bronces Access Protection 2018

Work in progress, South Portal line 2

토석류 및 산사태 방호 시스템 - San Francisco Tunnel Los Bronces Access Protection 2018

General view, north sector

토석류 및 산사태 방호 시스템 - San Francisco Tunnel Los Bronces Access Protection 2018

First works North Portal

토석류 및 산사태 방호 시스템 - San Francisco Tunnel Los Bronces Access Protection 2018

Work in progress, North Portal

토석류 및 산사태 방호 시스템 - San Francisco Tunnel Los Bronces Access Protection 2018

North Portal barrier (66 m, SL150)

 

Systems

 

System length

- 240 m

 

설치 년도

2018

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.

Customer

Anglo American - Los Bronces

Contractor

Pucará

Protected object

Mine / Quarry, Infrastructure, Other

부식방지

GEOBRUGG SUPERCOATING

Engineering

Geotest

Other installed applications

터널, 광산

Your local contact

Roger Moor
   

Roger Moor

Country Manager Ost- und Zentralschweiz, Liechtenstein

자연 재해
유압 공학
채굴 / 터널
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / 스위스 Country Manager Ost- und Zentralschweiz, Liechtenstein

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René Müller
   

René Müller

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

자연 재해
유압 공학
채굴 / 터널
Geobrugg AG,Industriestrasse 21,5200 Brugg / 스위스 Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

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Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

자연 재해
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / 스위스 Project Manager Inspection Services

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Isacco Toffoletto
   

Isacco Toffoletto

Ticino Country Manager

자연 재해
유압 공학
채굴 / 터널
Geobrugg AG Ticino,Stabile Cometal, via Pizzante 7,6595 Riazzino / 스위스 Ticino Country Manager

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