Navachab Mine 2002 - Geobrugg Navachab Mine 2002 - Geobrugg
Navachab Mine 2002 - Geobrugg Navachab Mine 2002 - Geobrugg
Navachab Mine 2002 - Geobrugg Navachab Mine 2002 - Geobrugg
Navachab Mine 2002 - Geobrugg Navachab Mine 2002 - Geobrugg

Navachab Mine

   Partager
Ville
Karibib
Pays / Région
Namibie
Année d’installation
2002
Client
Anglo Gold
Ingénierie
SRK Consulting Engineers
Entrepreneur
Nautical Steel/Navachab Mine
Objet protégé
Carrière / Mines, D'autres
Classe énergétique
500 kJ
Hauteur du système
2.0 m
Longueur du système
150 m
Autres applications installées
Exploitation minière / Tunnel
Situation de départ

In 2003 a 100 m³ fall of ground (FOG) occurred at Navachab Gold Mine, originated in the oxidized schist from an older failure scar. The FOG material was held back on the 1050 m catch bench. The elastic catch fence that was installed on the catch bench prevented overspill of the material into the pit. The risk to life though was very low as the pit bottom was closed to mining operations at the time.

Description

The failure, though small, was monitored by the early warning system. It was fortuitous that the failure occurred near one of the early warning systems extensometers and progression of the failure was recorded using this extensometer. The last geotechnical report to management stated that collapse of this material was imminent. The FOG activated the early warning system, and the pit was successfully evacuated, and all personnel congratulated on their prompt reaction to the early warning system. No injuries or equipment damage occurred during this FOG.

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Kevin H. Coyle
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Bob Lyne
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Pierce Runnels, Civil Engineer
Pierce Runnels, Civil Engineer
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