Gregg’s site investigation services include drilling and direct push cone penetration testing and sampling to help our clients characterize ground conditions for infrastructure development and assessment purposes including, but not limited to;
Mining and Oil Sands
- Slope and tailings dam stability, feasibility, or upgrades
- Mine tailings characterization
- Liquefaction assessment
Hydro Power
- Hydro-electric dam feasibility investigations or upgrades
- Infrastructure foundation assessment
- Liquefaction assessment
Infrastructure (pipelines, foundations transportation networks)
- Pipeline and watercourse investigations
- Road network evaluation
- Deep Foundation Design
- Retaining Wall Design
- Embankment Design
Offshore
- LNG facilities and construction / foundation design
- General marine infrastructure foundation design
- Dredgeing assessments
- Piles
- Pipeline alignment investigations
Gregg understands that geotechnical testing requires us to meet exacting standards and perform our tasks with accuracy and without compromising results. The method and precision of obtaining data will influence decisions on future recommendations for use of a particular site. That is why Gregg utilizes state-of-the art equipment and instruments to collect geotechnical data. Gregg has also aided in the design of specialty equipment, probes, and samplers to obtain data pertinent to geotechnical investigations. For further information regarding Gregg’s CPT and Drilling Methodologies, click below.
Gregg also offers a wide variety of in-situ testing and installations.
In situ testing techniques include, but are not limited to;
- Cone Penetration Testing (CPT)
- Packer tests (pneumatic and hydraulic)
- Undisturbed sampling
- Piston sampling
- Shelby tube sampling
- CRREL sampling
- Core orientation
- Field and vane shear
- iVane electric down-hole computer controlled shear vane testing
- Pre-bored Pressure meter
- Standard penetration tests (SPT)
Instrumentation installation services, include, not are not limited to;
- Monitoring wells
- Vibrating wire piezometers
- Slope inclinometer casings
- Horizontal Drains
- Settlement Gauges
- Multipoint borehole extensometers
- De-watering pumps
- Pre-bored Pressuremeter
- Nested installations