Geoprobe® pioneered Direct Push Subsurface Sampling Technology in 1987. A direct push machine "pushes" tools and sensors (soil probes) into the ground without the use of drilling to remove soil to make a path for the tool. Geoprobe® direct push machines rely on a relatively small amount of static (vehicle) weight combined with percussion as the energy for advancing a tool string. Direct push tools do not remove cuttings from the probe hole but depend on compression of soil or rearrangement of soil particles to permit advancement for the tool string. Direct push tools or soil probes are advanced as far as possible using only the static weight of the carrier vehicle. Percussion is applied as required when advancing soil probes through sands, gravels, hard pans, high friction clays, tills, fill materials, and surface frost.
Below you will find links to all of the direct push sections, including soil probe rod dimensions, liner dimensions, soil probe rods and accessories (1.25 in. - 6.0 in.), manual sampling, portable hydraulic rod clamp, and additional field accessories.