Looking for information on soil properties? EnISSA high-resolution measurements provide valuable insights into variations and characteristics of the subsurface.
We conduct this type of investigation in combination with MIP or OIP measurements for environmental investigations, as well as specifically for groundwater or geotechnical studies. A probe is inserted into the ground to create a depth profile using one or more of the sensors listed below.
Soil conductivity is measured using a probe equipped with an integrated EC dipole. These measurements provide insights into variations in soil composition, with an EC profile illustrating the different soil layers.
The Hydraulic Profiling Tool (HPT) collects data on soil permeability. Using a probe and a flow-controlled pump, a constant water flow is injected into the soil. The applied injection pressure is recorded and plotted against depth. Increased injection pressure indicates less permeable soil layers, while a pressure drop reflects more permeable layers. An empirical model is then used to calculate the estimated hydraulic conductivity (K [m/day]).
For the
Cone Penetrometer Test (CPT), a CPT cone is driven into the ground at a
constant speed using a heavy-duty penetrometer or a compact Geoprobe, anchored
into the soil. This test records two key parameters: cone resistance and sleeve
friction. The resulting data provides an accurate overview of the soil layers,
classified into 12 categories.