These specifications describe the State of Vermont Department of Transportation’s requirements for a combination auger, core, rotary type geotechnical boring machine, mounted on an applicable four-wheel drive, diesel engine truck chassis designed to support the machines full operation. The use of the equipment outlined herein will consist of, but is not limited to soil sampling, foundation testing, monitoring well installation and subsurface exploration work. • The drill machine must be capable of performing auger borings in unconsolidated formations with conventional flight or hollow-stem augers to depths of 150 feet. • The drill must be capable of reaching depths of up to 250 feet using “N” size drill tools. • The unit must be capable of coring or rotary applications and standard penetration testing. • The unit must be self-contained with rough terrain capabilities that permit access into difficult off-road sites. • The unit must be completely assembled and ready for operation when delivered.
