project sheet - chatham islands · pdf file · 2018-01-23project sheet - chatham...
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PROJECTChathamIslandsquarrymanagement
Projectsheet-ChathamIslands.docx/Page1of2
Projectname: ChathamIslandsquarrymanagement
Client: Screenworks
GeotechSupervisor: DanielSkilton
Projectdate: Dec2015–July2017
ProjectdescriptionGeotechwerecontractedtoSouthernScreenworksLimited,toestablishandoperateaquarryonOhinemamaFarmontheChathamIslands.ThequarrywasaGreenfieldsproject,fortheestablishmentofaquarryapproximately26,000m2inarea.Theprojectrequired:
• Construction (in conjunctionwithScreenworks)ofadecantpondpriortothestartofgroundengaging
• Establishment of a 26,000m2 quarrywith a processing area of around9,000m2
• Establishmentofthesiteoffice• Constructionofanaccesstrackthroughpastorallandtothequarry• Setupofstockpileareasforoverburdenandmaterial• EstablishmentofGeotechexplosivesmagazine• Quarryblastingtomeetrequiredscreensize• Generalquarrymanagementworks,production,stockpilemanagement
andcartage• Explosivesmanagement• Designforsubsequentrehabilitation
Thequarrywasbeingestablishedtoprovideconcreteaggregateforbuildingconcretex-blocks/breakwaterarmourfortheChathamIslandswharfupgrade.ResourcesappliedArangeofresourcesweremobilisedtotheChathamstosupporttheproject,including:
• SandvikRanger500topdrivesurfacetrackdrill• PC300excavator• HM400ADT• Emulsionunitmountedonunimog• Lightvehicles• Explosivesmagazine
ServicesAdecantstructurewasconstructedpriortoanyothergroundengagingtoestablishthequarry.Thissystemwouldmanagewaterrunofffromthequarry,andtheestablishedearlyoninthegreenfieldsproject.Geotechundertookdrillandblastforquarryestablishment.Blastswereamodestsize(generallylimitedtoaround5000m3)inpartduetothelackofspaceasthequarrywasdeveloped,butalsotomeetthescreensizefortheScreenworkscrusher.
PROJECTChathamIslandsquarrymanagement
Projectsheet-ChathamIslands.docx/Page2of2
GEOTECHGROUNDENGINEERING7370StateHighway6Charleston,BullerWestCoast,NewZealandwww.geotech.net.nz
Geotechoperatorsassistedwithgeneralquarryworks,stripping,cartage,stockpilemanagementandquarryoperation.Wewerealsotheleadroleinexplosivesmanagement,overseeingthelegislativecomplianceforallblasting,fromexplosivestransportandstorage,magazinemanagement,andblastdesignanddelivery.Projectvalue$497,000todate