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Камнепады, обвалы, осыпи - Navachab Mine 2002

General overview of the rock face within the mine

Камнепады, обвалы, осыпи - Navachab Mine 2002

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

Камнепады, обвалы, осыпи - Navachab Mine 2002

Boulders retained by the net

Камнепады, обвалы, осыпи - Navachab Mine 2002

Material held back by the rockfall barrier

 

Длина системы

150 m

 

Год установки

2002

Ситуация

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.

Описание

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.

Клиент

Anglo Gold

Проектировщик

SRK Consulting Engineers

Подрядчик

Nautical Steel/Navachab Mine

Защищаемый объект

Kарьер / Шахта, Другое

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Kevin H. Coyle
 

Kevin H. Coyle

Regional Manager Northeast

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Geobrugg North America, LLC,3 Beaudet Terr,Columbia CT 06237 / США Regional Manager Northeast

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Saleh Feidi
 

Saleh Feidi

Regional Manager California

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Geobrugg North America, LLC,8921 Emperor Ave.,San Gabriel, California 91775 / США Regional Manager California

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John Kalejta

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Geobrugg North America, LLC,3215 67th Avenue Pl,Greeley CO 80634 / США Regional Manager Central US

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Bob Lyne
 

Bob Lyne

Regional Manager Southeast

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Geobrugg North America, LLC,8004 Windspray Drive,Summerfield NC 27358 / США Regional Manager Southeast

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Pierce Runnels, Civil Engineer
   

Pierce Runnels

General Manager Geobrugg North America

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Geobrugg North America, LLC,22 Centro Algodones , Civil Engineer General Manager Geobrugg North America

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Tim Shevlin

Sales Director

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Geobrugg North America, LLC,Salem OR 97302 / США Sales Director

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