Terrier Rig

Geotechnics has an experienced team operating a Terrier tracked dynamic sampling rig.

The Terrier rig is specifically designed for environmental and geotechnical soil sampling. The Terrier has a coring barrel to core through surface asphalt or concrete. It can also perform SPTs to 8m and dynamic probing to 30m in suitable ground.

Window Sampler

The window sampler is designed for difficult access or space constraints such as in basements or residential gardens. The window sampler can core to 8m (10m in soft soil).

Geotechnics offers an environmental field monitoring and reporting service which will assist in meeting your resource consent conditions. This service removes the burden of monitoring activities from you, the consent holder. Regular monitoring ensures that you are in control of your company's environmental performance which streamlines your consent renewal process. This new service comes as a complete environmental monitoring package and is a key component of the resource consent process.

Services include:

Assessment of monitoring requirements
Assessment and Remediation of Monitoring Infrastructure
Development of appropriate sampling strategies
Installation of sampling systems
Sample Collection
Field Testing
Soil Sampling and Logging
Laboratory analysis interpretation and results
Liaison with consent authorities
Site Walkover Surveys

Monitoring undertaken:

Soil
Water
Leachate
Trade Waste
Private Wells
Dust Deposition Rates
Landfill Gases and VOCs
Vibration
Leachate, Meteorological and Groundwater Datalogging
Falling, Rising and Constant Head tests

We have a team of geologists / technicians who undertake geotechnical investigations throughout New Zealand. All logging follows the New Zealand Geotechnical Society “Guideline for the Field Classification and Description of Soil and Rock for Engineering Purposes, December 2005”.

Investigations Include:

Handauger Investigations
Drill Rig Investigations
Geotechnical Logging
Soakage Testing
EQC Investigations
Hand Shear Vane Test
Window Sampler Drilling
Scala Penetrometer Tests
Pressuremeter Testing
Large Field Vane

Geotechnics has an experienced team of instrumentation specialists involved in helping customers monitor engineering construction. We have been involved with instrumentation installation and monitoring on many large construction and roading projects.

Instrumentation Includes:

Inclinometers
Profilometers
Piezometers
Seismographs (Vibration Monitoring)
Crack meters
Extensometers
Pile Testing (Cross Hole Sonic)

We have a dedicated team of geologists / technicians who undertake Land Development Testing. These teams perform quality control testing on earthworks and pavements for many large development projects. We can operate from our main offices or set up on-site testing facilities to service large projects.

Testing Includes:

Hand Shear Vane Tests
Nuclear Densometer Testing
Scala Penetrometer Testing
Impact Value Testing (Clegg Impact Tester)
Sand Replacement Testing
Core Cutter Tests
Shrink/ Swell Sampling

Geotechnics has well equipped modern laboratories, providing excellent laboratory testing services for the civil engineering industry. Our scope of testing covers Aggregates, Concrete, Rock and Soil.

Testing Includes:

Aggregate Tests
Atterberg Limits
CBR – Laboratory
Compaction – Heavy, Standard, Vibrating
Concrete Compression and Density
Soil Density Tests
Dispersion Tests
Isotropic Consolidation
Jar slake Index
One–dimensional Consolidation
Permeability - Constant Head and Triaxial
Pinhole test
Particle Size Distribution - Sieve and Hydrometer
Relative Density
Ringshear
Shearbox – Small
Slake Durability
Solid Density (Specific Gravity)
Triaxial – B test, Consolidated Drained, Consolidated Undrained with and without Pore Pressure Measurement, Quick Undrained.
Unconfined Compression Tests.

Geotechnics offers a comprehensive road testing service, which covers a wide range of testing applications from single lane unsealed access-ways to multi-lane highways, airport runways, container terminals, building platforms etc.

Testing Includes:

Benkleman Beam
Geobeam
In-Situ CBR
Plate Load Tests
Falling Weight Deflectomer
In-situ density and moisture content
Pavement investigation pits
Services location
Traffic control