Yes. Though most of our work was traditionally for the environmental consulting industry, we have also added numerous geotechnical clients over the last several years. Both the Mini-Mole and the Big Beaver operate on the same concept as a conventional geotechnical rig, while the Geoprobe 6620 can be operated in geotechnical mode or in a direct push mode. When obtaining geotechnical samples, a 140lb safety hammer is raised and dropped 30inches onto AW rod attached to a 2″ diameter split spoon sampler. By counting the number of times that the hammer must be dropped to drive in the sampler, you can determine the “blow counts” needed for geotechnical studies. Though our other drills can collect split spoon samples and soil cores in plastic liners useful for grain size analysis or moisture content, they cannot be used to determine blow counts.
Common geotechnical applications include: inside buildings, landscaped areas, slopes, berms and back lots or yards accessible only by a narrow alley.