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Rockfall Protection - Grasberg Mine 2015

RXE-8000 rockfall barrier protecting mill facility in the background

Rockfall Protection - Grasberg Mine 2015

Installation works in progress - visible special combined posts allowing helicopter transport

Rockfall Protection - Grasberg Mine 2015

Slope morphology required reliable protection against 8000 kJ rockfalls and a height of 9 meters

Rockfall Protection - Grasberg Mine 2015

Finally, a 50 meters long rockfall protection was installed

Rockfall Protection - Grasberg Mine 2015

Overview of the Grasber Mine mill area

Rockfall Protection - Grasberg Mine 2015

Drilling works required good preparation and special equipment suspended on ropes

Rockfall Protection - Grasberg Mine 2015

Because of the size and helicopter transportation limits, posts were delivered in pieces, being screwed together directly on site

Rockfall Protection - Grasberg Mine 2015

RXE-8000 middle post pieces being transported by the helicopter - visible project specific screw flanges

Rockfall Protection - Grasberg Mine 2015

9 meters high RXE-8000 rockfall barrier installed across a natural gully

 

Systems

 

System length

50 m - 50 m

 

Year of installation

2015

Initial situation

Rockfall hazard from the natural slopes above the mill area within the Grasberg mine had to be mitigated. After several incidents with boulders hitting buildings and infrastructure a fast and reliable solution had to be found.

Description

The RXE-8000 rockfall barrier was installed across a very active gully on the east side of the mill area. Several rockfall incidents with boulders up to 2 meters in diameter had affected the mill infrastructure before. To ensure safe operation of the mill area below the gully, the barrier was installed approximately 140 meters above office buildings and ore processing facilities.

Customer

Freeport-McMoRan Inc.

Contractor

PT Freeport Indonesia

Protected object

Mine / Quarry

Corrosion protection

Galvanized, GEOBRUGG SUPERCOATING

Engineering

Geobrugg

Other participating companies

RPT-Indonesia

Other installed applications

Underground & Open Pit Mining

Your local contact

Roger Moor
   

Roger Moor

Country Manager Ost- und Zentralschweiz, Liechtenstein

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Switzerland 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

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG,Industriestrasse 21,5200 Brugg / Switzerland Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

E-Mail

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Natural Hazards
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Switzerland Project Manager Inspection Services

E-Mail

Isacco Toffoletto
   

Isacco Toffoletto

Ticino Country Manager

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG Ticino,Stabile Cometal, via Pizzante 7,6595 Riazzino / Switzerland Ticino Country Manager

E-Mail