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Protection contre les chutes de pierres - South African Open Pit Mine 2018

The first ATT-20 attenuator system in Africa, rockfall interception area

Protection contre les chutes de pierres - South African Open Pit Mine 2018

The posts of this attenuator rockfall barrier are 3 meters high, the mesh goes down to the ground (50 meters)

Protection contre les chutes de pierres - South African Open Pit Mine 2018

Falling rocks will be directed behind the «fence» to the designated runout zone

Protection contre les chutes de pierres - South African Open Pit Mine 2018

Rolled out chain link mesh covering the rockface, system width is 20 meters

 

Systèmes

 

Longueur du système

20 m

 

Année d’installation

2018

Situation de départ

The open-pit mine is located in the Republic of South Africa. The life of mine (LOM) is planned to the end of 2021. Two ore bodies will be mined at a combined rate of 5.9 Mtpa, using sub-level cave mining techniques. The resulting ground subsidence will affect operations at the surface.

Therefore, the customer required the installation of ground support and rockfall protection systems to improve the safety of people, of machines and equipment.

Description

Based on attenuator 1:1 testing in 2017, a system was designed based on calculated impulse. The impulse decided on the chosen type of attenuator. The rotational component defined the mesh type.

Rockfall attenuators are an exciting new protection system, especially for open-pit mines. They are a protection solution combining rockfall drapes and flexible rockfall barriers. The system is a passive protection measure: The barrier intercepts the falling rocks, the drape guides them into the designated runout zone.

  • Post height: 3 meters
  • System width: 20 meters
  • Mesh length: 50 meters

Client

Undisclosed Mine

Ingénierie

Geobrugg

Entrepreneur

Marshall Development

Objet protégé

Route/Rue, Carrière / Mines

Protection anticorrosion

GEOBRUGG SUPERCOATING

Votre contact local

René Müller
   

René Müller

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

Risques naturels
Ingénierie Hydraulique
Exploitation minière / Tunnel
Geobrugg AG,Industriestrasse 21,5200 Brugg / Suisse Country Manager Cantons AG BE BL BS FR GE JU NE SO VD VS

E-mail

Olivia Sartorius
   

Olivia Sartorius

Risques naturels
Ingénierie Hydraulique
Exploitation minière / Tunnel
Geobrugg AG

E-mail

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Risques naturels
Geobrugg AG,Trucks via road 14 or 13 only!, Aachstrasse 11,8590 Romanshorn / Suisse Project Manager Inspection Services

E-mail

Isacco Toffoletto
   

Isacco Toffoletto

Risques naturels
Ingénierie Hydraulique
Exploitation minière / Tunnel
Geobrugg AG Ticino,Via Brusada 5,6933 Muzzano / Suisse

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