GeoTek Solutions Pty Ltd

OPEN PIT DESIGN

There are many components to the geotechnical design of an open cut mine.

GTS can:
 

• Organise a total site investigation
• Embed ourselves in your exploration program
• Log drill cores to an appropriate standard
• Interpret geophysical logs
• Produce logs to client requirements
• Carry out on-site sampling
• Specify and arrange laboratory testing
• Analyse field and laboratory tests
• Carry out stability analyses
• Produce a report to a specified standard

CORE LOGGING

Geotechnical logging is different from coal logging and mineralogical logging.

Whereas the lith logger is interested in the detail of the rock, sometimes down to millimetre scale, the geotech logger is interested in identifying rock mass units that have similar geotechnical properties and describing the features that characterise a particular RMU. That will include an assessment of intact rock strength (not as easy as it sounds) and, identification and description of defects. The geotechnical logger will also sample core for laboratory testing taking particular care to select samples of critical defects and preserving the moisture content of the sample, often under difficult conditions.

Paul Maconochie has been a participant in the ACARP CoalLog project that has produced a standard dictionary for the Australian coal industry. We are flexible in the software we use to produce or final logs and currently use Strater for its flexibility. CoalLog is available from this AusIMM site
 

If you need a general guideline for geotechnical logging feel free to download our own Rock Core Logging for Engineering Purposes.

SIROVISION

Sirovision uses a hand held camera to generate 3D images on which you can trace scaled and georeferenced geological structures. These can be exported as strings or surfaces to other programs, or analysed using stereographic methods.

GTS can:
 

• Design and implement photogrammetric surveys to capture stereo-pair images
• Generate 3D models and mosaics
• Interpret structural, geological and geotechnical features
• Generate geotechnical hazard maps
• Export 3D models and associated structural data directly into mining packages such as Vulcan, Surpac, MineSight, and Studio
• Provide training and guidance to minesite personnel in all things Sirovision

GTS has mapped the whole of the Ok Tedi pit using Sirovision, and regularly uses the technology throughout the Bowen and Sydney Basins

MINING SUPPORT

Geotechnical issues arise throughout the production cycle.

GTS can:
 

• Prepare hazard management plans
• Carry out geotechnical inspections that may be required in fulfillment of legislative requirements
• Modify designs based on new geological exposures
• Supply a Registered Professional Engineer of Queensland, as required by the Professional Engineers Act, to provide professional geotechnical advice.