Probes utilize direct-push technology which utilizes hydraulic cylinders and a hydraulic hammer to advance a drill string by pushing or hammering it in without rotation, creating a borehole. This method is used for infrastructure projects, building and construction projects, marine projects and research. Once a borehole is formed, instrumentation such as piezometers can be installed to monitor ground conditions. This method of drilling is used primarily in soft unconsolidated formations and very soft rock.
The advantage of direct-push technology is that in the right soil type it can produce a large number of high quality samples quickly and inexpensively, generally from 50m to 75m per day. Boart Longyear™ has a variety of probe drill rigs from large Geoprobe 7720's to small Geoprobe 5400's. With truck and track mounted rigs in various sizes our drill crews are set up to meet your needs.