Pound for pound, one of the most versatile units for soil and groundwater investigations is the Big Beaver rotary auger – split spoon unit. Kodiak assisted the manufacturer to modify this drill to operate on the same principals as a traditional truck mounted drill; a 140lb hammer drives a 2″ split spoon sampler, while augers are used to bore the drill hole. This drill is often used inside buildings where soil sampling and/or groundwater monitoring is required at depths of 8-40 feet (or more). The locations we have drilled with this unit are incredibly diverse; ranging from fenced areas to fly-in locations, basements to bathrooms to boiler rooms to berms, parking garages to patios, dry cleaners to decks, gas stations to garages, schools to sidewalks, factories to forests, tennis courts to tank farms……the list goes on an on for 20 years.
The light weight, low head clearance, ability to do SPTs, and the detached power source, make this unit the premier drill for low clearance indoor locations for both geotechnical and environmental drilling.
Size: Requires area of approximately 6′ x 10′, 12 ‘ of clearance for conventional soil sampling. In areas of lower clearance the unit can be used with a custom built short tower (min. 8′) or as an auger (min. 7’) in conjunction with another one of our drills for soil sampling.
Power: Standard 140lb hammer; blow counts suitable for SPTs.
Emissions & Noise: Using hoses up to 100 feet long, the power unit can be positioned away from the drill, thereby eliminating exhaust emissions and noise for indoor projects.
Access: Manoeuvrable by hand and is narrow enough to fit through a standard door frame. Its ability to be dismantled makes it suitable for many basements.
Augers: 4″ solid stem augers are the most common choice. Two sizes of hollow stem augers can also be used for shallow well installations. (2″, 6″, 8″, 10″ solid stem augers also available)
Cross Contamination: Hydraulic fluids and drill lubricants are non-hydrocarbon based, eliminating cross contamination concerns.
Concrete & Asphalt: Asphalt and low quality concrete can be penetrated with this drill. For interior drilling, we predrill the floor with a diamond bit coring machine.
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