Robertson Geo technology successful in logging newly drilled pile boreholes.
The Robertson Geo 3-Arm Caliper Probe provides a single continuity log of borehole diameters, recorded by three mechanically coupled arms in contact with the borehole wall.
Opening and closing of the motor-driven caliper arms is by surface command allowing the probe to run into the boreholes with arms retracted. Once opened the spring loaded arms respond to borehole diameter variations as the probe is raised.
The Robertson Geo Mini Winch, Micrologger2 and Winlogger operating software provided the surface equipment to collect and record the data.
More information – GeoUnlocked Autumn 2018 issue