GEOTECHNICAL DRILLING SERVICES
With six dedicated Geotech machines operating from our Melbourne, Brisbane and Sydney depots, Numac Drilling Services has one of the most diverse geotechnical drilling fleets among Australian geotechnical drilling companies. A mix of truck-mounted and crawler-mounted drilling machines allows us to access restricted metropolitan sites and remote regional areas effectively, and provide industry-leading geotechnical core and engineering drilling services, including site surveys and soil investigations.
All of our highly skilled geotech drillers are fully qualified holding Certificate III in Drilling Operations and a minimum Class 1 Water-Well Licence. We are versatile drilling contractors and regularly conduct surveys and works on a wide spectrum of sites and facilities such as mine sites, tailings storage facilities, dams and major infrastructure projects. With the addition of Sonic drilling rigs and Geoprobe® mounted cone penetration testing (CPT) systems to our drill rig fleet, we can now offer complete geotechnical solutions for any investigation, including environmental and geotechnical drilling, rock drilling and inclinometer installations.
Conventional coring NMLC
Wireline coring NQ3, HQ3, PQ3
Track mounted compact machines for limited access locations
Vertical and angled holes.
NOVA CPT cone mounted on Geoprobe® rig
Operable on light track-mounted machines for difficult access locations
Anchor system to ensure rig stability
Complete sampling and well installation with the same machine - No need to mobilise additional rigs!
SPT & SHELBY TUBE
Fully automatic SPT hammers
Large and small track-mounted machines with SPT capability
All SPT hammers enclosed in the safety cage
Multipurpose sonic rigs with automatic SPT hammers
Shelby tubes (U-Tubes).
TUBEX AND CASING ADVANCE SYSTEMS
PWT tubex (Simcas) system for advancing casing through fractured rock formations with air
HWT casing advancer allows fast and continuous casing of unconsolidated formations with wire-line removal of the bit to allow sampling.
Vibrating Wire piezometers (VWP)
Water level monitoring wells
Landfill thermocouple installation.
PNEUMATIC AND HYDRAULIC PACKER TESTS
Straddle Packer test equipment for pressure testing specific zones within cored holes once drilling is complete
Single packer system for pressure testing during coring
Mono pumps for constant pressure.