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Alrosa Diamond Mine, Aykhal

Slope Stability - Alrosa Diamond Mine, Aykhal 2018

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

Slope Stability - Alrosa Diamond Mine, Aykhal 2018

Drilling works at the rock wall. Picture © ALROSA.

Slope Stability - Alrosa Diamond Mine, Aykhal 2018

View on to the upper part oft the installation.

Slope Stability - Alrosa Diamond Mine, Aykhal 2018

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

 

Year of installation

2018

Initial situation

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.

Geology

- Mainly fractured dolomite

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

Description

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.

Customer

ALROSA

Protected object

Mine / Quarry

Corrosion protection

GEOBRUGG SUPERCOATING

Your local contact

René Müller
   

René Müller

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

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG,Industriestrasse 21,5200 Brugg / Switzerland Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

E-Mail

Olivia Sartorius
   

Olivia Sartorius

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG

E-Mail

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Natural Hazards
Geobrugg AG,Trucks via road 14 or 13 only!, Aachstrasse 11,8590 Romanshorn / Switzerland Project Manager Inspection Services

E-Mail

Isacco Toffoletto
   

Isacco Toffoletto

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG Ticino,Via Brusada 5,6933 Muzzano / Switzerland

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