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Alrosa Diamond Mine, Aykhal

Consolidamento di versanti - Alrosa Diamond Mine, Aykhal 2018

The rockface including the portal, which is protected with the TECCO® mesh.

Consolidamento di versanti - Alrosa Diamond Mine, Aykhal 2018

Drilling works at the rock wall. Picture © ALROSA.

Consolidamento di versanti - Alrosa Diamond Mine, Aykhal 2018

View on to the upper part oft the installation.

Consolidamento di versanti - Alrosa Diamond Mine, Aykhal 2018

After drilling and inserting the anchors, the mesh can simply be unrolled and fixed with spike plates.

 

Anno di installazione

2018

Situazione iniziale

The open pit mine is located in Aykhal, Siberia as part of the Aykhal production site - one of the world-leading diamond producing companies ALROSA. Aykhal is situated in the permafrost region – that is why operations in the open pit area are impossible during 2-3 months of the short summer time: Many rockfalls occur as a result of melting permafrost slopes. However an underground mine is operating and trucks are permanently using the portal to the quarry.

Some conventional wire mesh was widely used at this spot until now to safeguard the portal. As this mesh did not provide enough safety and has to be changed every 2-3 years. Alrosa decided to test Geobrugg state-of-the art technology.

Geologia

- Mainly fractured dolomite

- Unstable layer from 1,1 to 1,5 meters

Descrizione

One of the challenges was the delivery of material and drilling machinery to the site: In winter time you may use the ice road which runs along the river Lena.

In the summer material has to be delivered by ship, what takes 1.5 months from the European part of Russia to this site. In the end the installation had to be carried out during the short period when the temperatures were above freezing which is from mid of May to mid of September.

For the protection solution TITAN 40/16 nails with TECCO G65/3 mesh and P33/50 spike plates were used. In total 1400 m2 were stabilized. The pure installation time without delivery times was one month.  

The berms are subject to heavy erosion due to the melting permafrost. TECCO G65/3 then will stabilize actively the berms of the open pit mine in future.

Cliente

ALROSA

Oggetto protetto

Cava / Miniera

Protezione dalla corrosione

GEOBRUGG SUPERCOATING

Il contatto locale

Kevin Coyle
 

Kevin Coyle

Regional Manager Northeast

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Geobrugg North America, LLC,3 Beaudet Terr,CT 06237 Columbia / Stati Uniti Regional Manager Northeast

E-mail

Saleh Feidi
 

Saleh Feidi

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Geobrugg North America, LLC,8921 Emperor Ave.,91775 San Gabriel, California / Stati Uniti

E-mail

John Kalejta
 

John Kalejta

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Geobrugg North America, LLC,KS 67226 Wichita / Stati Uniti

E-mail

Bob Lyne
 

Bob Lyne

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Geobrugg North America, LLC,8004 Windspray Drive,NC 27358 Summerfield / Stati Uniti

E-mail

Pierce Runnels, Civil Engineer
   

Pierce Runnels

General Manager Geobrugg North America

Sistemi contro il dissesto idrogeologico
Geobrugg North America, LLC,22 Centro Algodones , Civil Engineer General Manager Geobrugg North America

E-mail

Tim Shevlin
 

Tim Shevlin

Sistemi contro il dissesto idrogeologico
Geobrugg North America, LLC,OR 97302 Salem / Stati Uniti

E-mail