Ground penetrating radar is an effective and therefore also relatively inexpensive measurement method in soil and bedrock surveys, geostructural surveys and INRA surveys.
Ground penetrating radar (GPR) is an effective method for determining the different layer thicknesses of soil covers and geostructures. The depth range depends on the equipment used and the object being measured, varying from a meter to a couple of tens of meters. The method can be used to produce initial data to support planning or, for example, to utilize in geostructure quality assurance. Due to the nature of the method, it is also suitable for underground mapping, e.g. in the infra area when the location of pipes is not known. Ground penetrating radar is also suitable for fracture and fracture surveys of rock structures.
The operation of ground penetrating radar is based on the propagation of an electromagnetic pulse and the interaction between the soil and bedrock. The pulse emitted by the ground penetrating radar antenna is reflected from the interfaces of the medium, where the electrical impedance changes. For this reason, ground penetrating radar can be used to map a wide variety of objects, from soil structures to objects. Ground penetrating radar provides very high-resolution results and, due to its efficiency, is relatively inexpensive to implement.
The transmitter, receiver and batteries are usually built into one device, which often allows the entire system to be operated by one or two people. Measurements are performed by moving along pre-planned measurement lines. The frequency of the antenna used affects the resolution and depth range of the final results. The measurement equipment and antenna frequency are selected according to the object.
We use SIR-3000 and SIR-4000 ground penetrating radar devices manufactured by GSSI. The antenna frequency range is 100-2600 MHz.
We are also familiar with ground penetrating radar systems from different equipment manufacturers and, if necessary, you can also ask about alternative equipment. We have excellent connections to equipment rental companies and an extensive cooperation network.
Customers always receive quality-assured raw data from our surveys. In addition, we process, interpret and, if necessary, analyze the data. The general end product of ground-penetrating radar measurements is a ground-penetrating radar profile image with interpretations and a tabular numerical presentation of the interpretations tied to the geographic coordinate system specified by the customer. Selected-level reporting and customer familiarization with the survey results are carried out as agreed.
