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Officine Maccaferri Group Profi le

Consultancy and PartnershipWe do not merely supply products, but work in partnership with our c l ients, offer ing technical expert ise to del iver versat i le, cost effect ive and environmental ly sound solut ions. We aim to bui ld mutual ly benef ic ial re lat ionships with c l ients through the quality of our service and solutions .

Organisational StructureOff ic ine Maccaferr i is at the heart of the Maccaferr i Industr ial Group. I ts continued growth is based upon long-held values of innovation, integr ity, excel lent service and respect for the environment.Maccaferr i ’s v is ion is to become a leading internat ional provider of advanced solut ions to the c iv i l engineer ing and construct ion market. Implementing a strategy of vert ical integrat ion, Maccaferr i researches, manufactures, designs, suppl ies and constructs solut ions within i ts target markets.The capabi l i ty of the business continues to expand due to a strategic plan to open new markets and grow exist ing ones; Maccaferr i now offers advanced engineered solut ions from beach nourishment to reinforced soil structures and from rockfall mitigation to tunnelling systems .With over 2000 employees, 26 manufactur ing faci l i t ies and local operat ions in 100 countr ies around the world, Maccaferr i can truly c laim to have a global presence with local focus.

Founded in 1879, Officine Maccaferri soon became a technical reference in the design and development of solut ions for erosion control and retaining structures. S ince then, through technological innovation, geographical expansion and focussed divers i f icat ion, Maccaferr i now offers solut ions at a global level for a wide range of civil and environmental engineering appl icat ions.

Maccaferri Canada Ltd.400 Collier MacMillan Drive, Unit BCambridge, Ontario N1R 7H7Tel: (519)623-9990Fax (519)623-1309info@maccaferri.ca

www.maccaferri.ca

Area Offices:Vancouver, BCCalgary, ABEdmonton, ABMontreal, QCHalifax, NS

(604) 683-4824(403) 244-6556(780) 447-2719(450) 420-1845(902) 468-8615

2 3

Optimum Colliery - South Africa Rubicon Pit - Australia Yauricocha Min - Peru

This brochure is part of a series of publications with the purpose of presenting Maccaferr i ’s range of solutions. Further technical brochures, documentation, design guides, software and project Case Studies are also avai lable. For over 130 years, Maccaferr i has solved our cl ients’ geotechnical and engineering problems; from evaluation and project definit ion to design and construction, we continually accumulate experience and knowledge in this f ield.

For additional information or other technical publications, please contact any Maccaferri office.

For 130 years, Maccaferr i has developed innovative, sustainable engineer ing products and solut ions. Maccaferr i engineers offer technical support including analys is, design, product select ion and instal lat ion supervis ion.

Maccaferr i are your project partners every step of the way.

WITH OVER130 YEARS OF

INTERNATIONALEXPERIENCE

Although there are great di f ferences between the mining and civ i l engineer ing industr ies, the engineer ing chal lenges are s imi lar; Maccaferr i ’s solut ions are appl icable to both sectors.

Mining is one of the oldest human act iv i t ies; the f i rst t races of act iv i ty are over 40,000 years old. The business of modern mining fol lows str ict environmental , operat ional and remediat ion guidel ines. These ensure that the mined area can recover to at least i ts or iginal condit ion, and often better in many cases.

Wherever your problem exists within the l i fecycle of the mine, Maccaferr i products and solut ions can help. From access and mater ials handl ing infrastructure, rockfal l hazard mit igat ion, product concentrat ion and leachate storage, to dewater ing and s ite remediat ion, please contact Maccaferr i .

MiningS o l u t i o n s

Niddrie Quarry,Australia

4 5

This is where minerals (previously deposited in the leachate) receive treatment according to their subsequent use.

Be it an underground mine or an open-cast mine, minerals are extracted through the drilling of solid rock.

Water use is necessary in the various stages of the cycle of a mine and this is where it is treated and recycled.

Treatment Zone

Mineral Extraction Zone

Water Treatment Zone

Treatment Plant

Underground Mine

Open-cast Mine

Water Treatment Reservoirs

Flotation

This is where the rock minerals are crushed into smaller pieces.

Minerals are extracted from the rocks through a chemical process. In order to carry out this process, the minerals need to be placed into properly prepared areas. The results of this process are collected in two areas. In the pool storage are the leached minerals and in the tailings dam are the residues.

This is where the rock minerals are accumulated.

Crushing Zone

Leaching Zone

Storage Zone

Primary Crusher

Dismantling Zone

Leaching Storage

Tailings Dam

Leaching Zone

Storage Area

MiningP r o c e s s e s

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UndergroundM i n e s

Wirand reinforced shotcrete.Pillones, Peru

Gabion retaining walls.Poderosa Mine, Peru

Pararib™ debris control.Coal Mining, Yorkshire, UK*

0,6m

Operat ing underground encompasses the necessary processes and appl icat ions of specif ic techniques to extract valuable minerals. Maccaferr i offers numerous solut ions to l ine tunnels to control loose and fal l ing debris that often occurs during mining operat ions. Depending on the specif ic r isks, these solut ions include steel or polymer meshes, or f ibre reinforced shotcrete.

TAILORED SOLUTIONS TO MEET CLIENT

NEEDS

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Maccaferr i ’s high strength Parar ib™ tunnel l in ing polymer mesh is white in colour, f lame retardant and l ight to handle in conf ined areas. Wirand steel and polymer f ibres are added to pumped shotcrete to reinforce i t and provide stabi l isat ion of shafts and adits and can even replace the tradit ional steel mesh. Rapid to instal l , these solut ions minimise disruption to the extract ion operat ion.

ProjectE x p e r i e n c e

Lauro Muller, SC, Brazil Mining Company

Industria Carbonifera Rio Deserto

Project Date

2003

Solution

Surface support of pillars using double twist steel mesh

INDUSTRIA CARBONIFERA RIO DESERTO

PASSAC MINEJunin, PeruMining Company

Compania Mineria Argentum S.A.

Project Date

2007

Solution

Shotcrete reinforced with Wirand FS3N steel fibre

* Picture courtesy of Minova Weldgrip

Steel strapand fixing

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Rockfall protection meshPorcupine Joint Venture, Canada

Surface erosion protection, Peru

ProjectE x p e r i e n c e

IMPROVED SAFETY AND

VIABILITY

OpencastM i n e s

An opencast or open-pit mine is used to extract valuable deposits c lose to the earth’s surface. Here the fragmentat ion, loading, mater ials handl ing and product ion control require heavy equipment.To maximise extract ion volume and minimise the space for infrastructure, s lopes within these mines can be steep. Mater ial can detach from these s lopes affect ing mine safety and operat ions.

Maccaferr i ’s solut ions address these problems with a range of high performance steel meshes and rockfal l catch fences rated to 5000kJ impact resistance. Rockfal l protect ion embankments for greater impact protect ion are also avai lable.

Rockfall catch fenceBoral Quarry, Australia

PIERINA MINEAncash, PeruMining Company

Barrick Gold Corporation

Project Date

2005

Solution

Rockfall protection and surface stabilisation using MacMat® R and high resistance mesh

BotswanaMining Company

Debswana

Project Date

2010

Solution

Rock slope surface strengthening using Steelgrid MO

DEBSWANA-JWANENG MINE

1,0m

1,0m

1,0m

1,0m

Anchoringthe slope

Vegetation

3,0m

1110

ProjectE x p e r i e n c e

RAPIDCONSTRUCTION

PROCESS

TreatmentP r o c e s s

22,5m

2,0m

2,0m

0,5m1,0

1,5

2,0m

8.0m

2,0m

The treatment process consists of the operat ions after mineral extract ion and unti l a concentrated mineral is produced. Numerous phases can include, f ragmentat ion, graining, mi l l ing, c lassi f icat ion and concentrat ion. At each stage, Maccaferr i offers solut ions such as reinforced soi l and retaining structures for crusher and hopper wal ls . Wherever possible, the reuse of s i te-won structural backf i l l is used with Maccaferr i ’s geogrids for reinforced soi l , reducing costs and mater ial waste. Maccaferr i ’s concrete panel wal l system, MacRes® offers vert ical structures with a tough fascia and with geogrid strengths up to 1350kN/m, even the heaviest vehic les can be accommodated.

For the concentrat ion stage, waterproof ing systems and lagoon structures are required to contain the concentrate, thereby avoiding inf i l t rat ion into the natural ground and potential contamination of aquifers.

Terramesh™ reinforced soil wallIduapriem Mine, Ghana

MacRes® and Terramesh™ tip wallOptimum Colliery, South Africa

Terramesh™ reinforced soil wallMina Gold Field, Peru

Column

North West Province, South AfricaMining Company

Aquarius Platinum

Project Date

2002

Solution

21,5 m high vertical reinforcedsoil structure using Terramesh™ and Paragrid™

MARIKANA MINE

La Libertad, PeruMining Company

Minera Barrick Misquichilca

Project Date

2004

Solution

Reinforced soil structure using Terramesh™

ALTO CHICAMA MINE

21.5

m

5 m

10 m

15 m

1312

ProjectE x p e r i e n c e

MacLine® HDPE Geomembrane

MacDrain® 2LDrainage Geocomposite

MacTex® MT 400 non woven geotextileDewateringP r o c e s s

StorageP r o c e s s

The safe storage of tai l ings, waste, leachates and toxic mater ials is a s ignif icant operat ion within mines. Maccaferr i ’s range of solut ions includes geosynthet ic membranes, geogrids and drainage geocomposites. These are used in heap leach pad l iners, evaporat ion ponds and lagoon l inings. Containment dykes often feature geogrid reinforced soi l or gabion retaining structures and major dump zones can be supported on basal reinforced platforms.

MacTube® geotextile tubes are used for dewatering mine tailings, sludge ponds or slurries. They are specifically designed to retain solid particles within the tube, whilst the filtrate fluids are released through the fabric. The drained solid residue can be left to dry before disposal in a controlled manner.

COBRIZA MINEHuancavelica / Churcampa, Peru

Mining Company

Doe Run Peru

Project Date

2006

Solution

Drainage, separation and impermeable linings to lagoons using MacDrain®, MacTex® and MacLine® respectively

Goldex Mine, PeruParalink™ basal reinforcement of storage area.Goldex Mine, Canada

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TECHNICAL SUPPORT FROM

DESIGN TO CONSTRUCTION

Effect ive access ramps, haul roads, surface water control structures and drainage systems are important to the uninterrupted performance of a mine.

Access works &Mine infrastructureWhether a weak haul road requires sub-grade stabi l isat ion with geogrids, an outfal l structure requires erosion protect ion, or a run-off ditch needs l in ing, Maccaferr i can help based on our 130 years of experience in c iv i l , geotechnical and hydraul ic engineer ing.

Reno™ mattress erosion protection

Terramesh™ tailings dam

MacRes® vertical faced concrete panel wall

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Limpopo, South Africa

Mining Company

Anglo-Platinum

Project Date

2009

Solution

Rockfall mitigation drapery using double-twist rockfall mesh

CUAJONE, PERUMoquegua, Peru

Mining Company

Southern Peru

Project Date

2006

Solution

Containment dyke retaining structure using gabions

ProjectE x p e r i e n c e

RUBICON PITAustralia

Mining Company

Barrick (Australia Pacific) Ltd

Project Date

2010

Solution

Rock slope surface stabilisation and rockfall hazard mitigation using PVC coated double twist rockfall mesh

ANCASH MINEAncash, Peru

Mining Company

Antamina Mining

Project Date

2009

Solution

Rockfall protection embankment for conveyor station using Terramesh™ and MacGrid ®

MOGALAKWENA MINE

1918

ANTAMINA MINEAncash, PeruMining Company

Compania Minadora Antamina

Project Date

2006

Solution

Slope protection and revegetation using MacMat® and MacMat ® R

ProjectE x p e r i e n c e

AboutM a c c a f e r r i

MineC l o s u r e

Maccaferr i ’s Research and Development and Technical departments, have advised their customers at each stage of the construct ion process, f rom design to construct ion supervis ion, in many of the

works shown in this brochure. Maccaferr i engineers are avai lable to provide technical advice on exist ing solut ions or to assist in the search for solut ions that employ new technologies.

Final ly , the c losure of the mine and the reinstatement of the ecosystem is one of the most important act iv i t ies in the l i fe of the mine.Maccaferr i offers impermeable capping and drainage systems to prevent surface water enter ing the deposits. The rapid re-establ ishment of vegetat ion and soi l erosion protect ion systems complete the c losure operat ions. Maccaferr i ’s wide range of man-made and biodegradable soi l stabi l isat ion and erosion protect ion solut ions faci l i tate this.

Tailings Dam Chute, Australia

Antamina Mine, Peru

Batu Hijau Mine, Indonesia

After Before

World Design Centre Brochures & Manuals Technical Lectures Technical site support

REHABILITATION,REINSTATEMENTAND EROSION

CONTROL