Szwajcaria
Szwajcaria

myGeobrugg

Ochrona przed obrywami skalnymi - Navachab Mine 2002

General overview of the rock face within the mine

Ochrona przed obrywami skalnymi - Navachab Mine 2002

The muck pile after the failure.; material from the oxidized soft lower schist

Ochrona przed obrywami skalnymi - Navachab Mine 2002

Boulders retained by the net

Ochrona przed obrywami skalnymi - Navachab Mine 2002

Material held back by the rockfall barrier

 

Dlugosc systemu od

150 m

 

Rok Instalacji / Montazu

2002

Sytuacja początkowa

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.

Opis zastosowanego rozwiazania

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.

Kraj / Region

Namibia

Inwestor

Anglo Gold

Projektant

SRK Consulting Engineers

Wykonawca

Nautical Steel/Navachab Mine

Chroniony Objekt

Mine / Quarry, Other

Osoba kontaktowa na miejscu

René Müller
   

René Müller

Country Manager Western Switzerland

Zagrożeniami naturalnymi
Nżynieria hydrauliczna
Kopalnie / Wydobycie / Tunel
Monitoring
Geobrugg AG,Industriestrasse 21,5200 Brugg / Szwajcaria Country Manager Western Switzerland

Formularz kontaktowy

Olivia Sartorius
   

Olivia Sartorius

Project Manager Sales Eastern and Central Switzerland

Zagrożeniami naturalnymi
Nżynieria hydrauliczna
Kopalnie / Wydobycie / Tunel
Monitoring
Geobrugg AG Project Manager Sales Eastern and Central Switzerland

Formularz kontaktowy

Matthias Denk, Msc. Env. Eng.
 

Matthias Denk

Zagrożeniami naturalnymi
Nżynieria hydrauliczna
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Szwajcaria , Msc. Env. Eng.

Formularz kontaktowy

Isacco Toffoletto
   

Isacco Toffoletto

Country Manager Southern Switzerland

Zagrożeniami naturalnymi
Nżynieria hydrauliczna
Kopalnie / Wydobycie / Tunel
Monitoring
Geobrugg AG Ticino,Via Brusada 5,6933 Muzzano / Szwajcaria Country Manager Southern Switzerland

Formularz kontaktowy