Geoprobe 7822DT Direct Push and Rotary Drill Rig: Powerful, Compact, Advanced Capabilities

The Geoprobe 7822 stands out from other rigs due to its combination of powerful performance, compact design, and advanced capabilities. Unlike many other rigs, the 7822 offers a unique blend of versatility, user-friendliness, and flexibility.

Highlights:

- Versatile Applications: Ideal for soil sampling, groundwater sampling, soil gas surveys, well installation, CPT, core sampling, hydraulic profiling, and more.
- Advanced Sensing: Can be equipped with tools for real-time insitu data collection and detailed subsurface analysis.
- Environmental Remediation: Supports injection applications for in-situ remediation projects.
- User-Friendly: Easy to use control system with digital feedback on a screen mounted to the control panel.
-Site Preparation and transport: Has onboard dozer style blade to help with tooling transport and site preparation without the need for additional machinery
- Customizability: Modular design with a variety of tooling options to tailor the rig to specific project needs.
-Flexibility: Can be easily equipped with a variety of toolboxes and rod carriers to limit the need for support vehicles and increase work efficiency

Key Metrics:

- Powerful Performance: Equipped with a 56-horsepower engine, the 7822 delivers superior power for demanding tasks.
- High Penetration Force: Boasts 22 tonnes of pullback force and 16 tonnes of downforce, ensuring effective soil penetration and retrieval even in tough Australian conditions.
- Enhanced Capabilities: Features the superior GH63 Direct Push Hammer designed and manufactured in the USA by Geoprobe.
- Compact Design: Manoeuvrable in confined spaces, ideal for urban and restricted-access sites.

Applications the 7822 excels in:
- Soil Sampling: Efficiently collects soil samples for environmental and geotechnical analysis.
- Groundwater Sampling: Instals groundwater wells to sample for contamination and quality assessments.
- Solid augers: When equipped with a auger head can accommodate up to 9” Solid augers
- Hollow augers: When equipped with a auger head can accommodate up to 6” ID hollow augers
- Soil Gas Surveys: Can instal temporary and permanent monitoring wells to detect soil gas and vapor intrusion risks.
- Well Installation: Can utilise augers or direct push rods to instal a variety of wells.
- Rock coring: With the addition of a 4-speed head can achieve recovery of rock core samples at depth.
- Cone Penetration Testing (CPT): With an addition can perform in-situ soil characterization and geotechnical investigations.
- Injection Applications: Facilitates the injection of remediation chemicals and amendments into subsurface soils and groundwater.
- Hydraulic Profiling Tool (HPT): Provides high-resolution data on soil permeability and Electrical Resistance to help with stratigraphy.
- Membrane Interface Probe (MIP): Detects volatile organic compounds (VOCs) in soil and groundwater.
- Optical Imaging Prove (OIP): Utilizes fluorescence to map contamination plumes of NAPL contaminates in real-time.
- Vapor Intrusion Assessments: Gathers soil gas samples to assess vapor intrusion risks.

Some modular additions:
Head feed pressure control: enables both control and feedback over the drill rig head advancement rate
Safety Cage: Encloses the moving parts of the drill head with a latched and interlocked Safety Cage
2 speed auger drive: enables the use of standard augers
4 speed auger drive: enables the use of both standard augers and can achieve diamond rock coring speeds
Breakouts: can be used to hold tools insitu or break rods for easier handling

The Geoprobe 7822’s flexibility and advanced capabilities make it an indispensable tool for environmental consultants, geotechnical engineers, and site remediation specialists. Its ability to adapt to various field conditions and project requirements ensures that it meets the demands of diverse subsurface investigation and remediation tasks.