Diamond Drilling
					Diamond Drilling
Helidrill has 2 main Diamond Drilling rigs that are capable of the following depths:
Rig One
PQ – 80 metres
HQ – 180 metres
NQ – 250 metres
Rig Two
PQ – 150 metres
HQ – 300 metres
NQ – 400 metres
The other smaller rigs are used for holes less than 50 metres.
									Site Investigation Drilling
					Site Investigation Drilling
Site Investigation is used to determine the suitability for building sites, bridges and other structures. Any of the 4 rigs can be used for this purpose, depending on location and the depths and diameter of the holes that are required. The following services are also offered as part of the Site Investigation Drilling.
									SPT Testing
					SPT Testing
Split spoon and spike SPT gear.
									Pushtube Coring
					Pushtube Coring
Pushtube coring gear for coring very soft ground and for coring through a casing advance system, touch coring and moisture content testing.
									Piezometer Installations
					Piezometer Installations
For ground water level monitoring.
									Inclinometer Installations
					Inclinometer Installations
For ground movement monitoring.
									Siezmic Line Drilling
					Siezmic Line Drilling
Any one of the 4 rigs that Helidrill has are suitable for seismic line drilling. For shallow depth seismic holes, one of the smaller rigs is mounted onto the back of the 4WD Suzuki, this allows the drilling to be completed on valuable farm land with minimal impact to the pasture or crops.
									Drainage Holes
					Drainage Holes
We offer drainage drilling for draining water out of landslides, building sites, from under roads and railway lines etc.