GROUND ANCHORING AND DRILLING
In the wake of the devastating Christchurch earthquakes Rock Control has quickly become a leading supplier to the SCIRT Delivery Teams for a variety of ground anchoring and civil construction projects. Our experienced crews can deliver projects to meet stringent British Standards for corrosion protection
.and acceptance testing in any environment

Soil Nails
• Oversize holes up to 250mm in most soils
• A variety of casing systems can be installed to depths up to 12m
• Top-down staged installation for temporary support and unstable soils
• Torque tensioning post installation
• Expanding bits to bell ends for increased pull-out resistance
• Installation of sacrificial nails to determine bond lengths
• Extensive experience in a range of challenging New Zealand geology
• High capability in difficult access environments

Rock Bolting
• Experts in rockfall protection and slope stabilisation
• A comprehensive range of drifter top hammer and down the hole hammer capabilities
• Rock-Bolting in vertical and difficult access environments
• Extensive experience with installation systems to comply with complex designs for corrosion protection and confined free lengths

Self-Drilling Anchors
• Efficient, single step installation in challenging collapsible soils
• High pressure grouting to inject void-space in granular soils – increasing pull-out resistance
• Hot dip galvanised and epoxy coated corrosion protection systems
• Our equipment is adaptable to a range of self-drill bar and micro-pile systems

Mechanical Ground Anchors
• Duckbill type mechanical anchors for minimal site and soil disruption
• Larger manta-ray type anchors for higher loads in cohesive soils
• A range of corrosion protection options including anodised aluminium/stainless steel systems for long-term design life

Drainage Drilling
• Sub-horizontal and array drains
• Up to 30m length in most conditions
• Dewatering and temporary works