Geosynthetics August/September 2021 - 27

Case Study
Construction of roads
in underground mines
with 3D geocells
By A. Goncharov, A. Kolesnikov and A. Korotkevich
A
ccess roads are a critical infrastructure component for underground mines.
The operational characteristics of these roads directly affect mine efficiency,
operating costs and safety. Much of the mine's operating expenses are due to material
transportation, and well-constructed roads help reduce cycle times, fuel
consumption, tire wear and transportation costs per ton of ore. Most importantly,
they are vital for a safe transportation system.
The leading causes of poor road conditions in underground mines are:
* Use of heavy mining equipment
* Water inflow and softened rocks at the base of the roads
* Lack of road service and specialized equipment for road maintenance
In turn, high-performance heavy hauling equipment with a high mass and
specific pressure on the ground that exceeds the ultimate strength of bulk unfractionated
rock creates rutting, the inverse diagram of the profile of the route, which
contributes to water stagnation, soil softening and premature loss of functionality
of unreinforced roads.
Some mining companies ignore the problem of roads, even though the poor
condition of the passages dramatically reduces the speed of equipment movement
and leads to breakdowns of self-propelled equipment, requiring often expensive
repairs. As a result, efficiency is reduced, and production at the mine drops.
Many companies solve this problem by building crushed-stone fill roads.
However, this solution has several disadvantages: due to cyclic loads and water
inflow, the road begins to deteriorate rapidly, pits and rutting are formed, and the
efficiency of production decreases. In this regard, the road crew of the mine must
constantly monitor and carry out routine maintenance of roads, including frequent
filling of new crushed stone, and then the leveling and the compaction of the surface.
Other companies opt for concrete roads. Such roads are labor-intensive and
expensive to build, and the road section cannot be included in the transport system
until the concrete mixture hardens.
Since the 1980s, the most advanced mining companies have used various
geosynthetic materials, particularly geotextiles, geomembranes and biaxial
PROJECT HIGHLIGHTS
GEOCELLS FOR ACCESS ROADS
IN UNDERGROUND MINES
OWNER
PhosAgro Group of Companies
LOCATION
Kirovsk (Murmansk Region),
Russian Federation
CONTRACTOR
Kirovsk Branch of Apatit
(PhosAgro Group of Companies)
DESIGN ENGINEERS
Anton Goncharov and
Alexander Korotkevich
GEOSYNTHETICS PRODUCTS
GEOCORD reinforced geocell,
FAST-LOCK fastening key
GEOSYNTHETICS MANUFACTURER
PRESTORUS LLC
A. Goncharov is leading engineer
for PRESTORUS LLC in Moscow, Russia.
A. Kolesnikov is chief sales manager
for PRESTORUS LLC in Moscow, Russia.
A. Korotkevich is head of the technical
department for PRESTORUS LLC in
Moscow, Russia.
All photographs courtesy of PRESTORUS LLC.
www.GeosyntheticsMagazine.com
27
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Geosynthetics August/September 2021

Table of Contents for the Digital Edition of Geosynthetics August/September 2021

Geosynthetics August/September 2021 - Cover1
Geosynthetics August/September 2021 - Cover2
Geosynthetics August/September 2021 - 1
Geosynthetics August/September 2021 - 2
Geosynthetics August/September 2021 - 3
Geosynthetics August/September 2021 - 4
Geosynthetics August/September 2021 - 5
Geosynthetics August/September 2021 - 6
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Geosynthetics August/September 2021 - Cover3
Geosynthetics August/September 2021 - Cover4
Geosynthetics August/September 2021 - GeoNashville Attendee Brochure 1
Geosynthetics August/September 2021 - GeoNashville Attendee Brochure 2
Geosynthetics August/September 2021 - GeoNashville Attendee Brochure 3
Geosynthetics August/September 2021 - GeoNashville Attendee Brochure 4
Geosynthetics August/September 2021 - GeoNashville Attendee Brochure 5
Geosynthetics August/September 2021 - GeoNashville Attendee Brochure 6
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