The borehole is advanced by driving a hollow steel sampling tube into the ground. Inside the sampling tube is a plastic liner into which the soil is retained. When the tube is extracted, the liner can be removed and split to enable logging and sampling by a Geotechnical Engineer.
Our Dynamic Sampling crews are directly employed and are NVQ qualified in Land Drilling and British Drilling Association (BDA) audited to ensure high standards in both safety and quality. The crews are supported by our qualified Geotechnical Engineers who undertake supervisory and technical duties including borehole logging and sampling.
This technique is suitable for sites with access restrictions and for environmental sampling including the installation of shallow groundwater and ground gas monitoring wells. It can also be a useful technique to supplement the excavation of trial pits.