What is Mobile GPR?
Due to inaccuracies and inconsistencies within utility and underground infrastructure records, Ground Penetrating Radar (GPR) has become an essential non-intrusive method of locating underground objects and assets such as structures, culverts, voids and underground utilities. This is now possible in a mobile form – Mobile GPR.
What is the process of Mobile GPR?
How does Mobile GPR work?
Mobile GPR works in the same as way normal GPR, by transmitting pulses of electromagnetic energy into the ground. The waves pass through the surface and reflect back from any objects underneath the highway.
The 'traditional' push GPR survey is very labour-intensive and time-consuming. This is where Mobile GPR is revolutionising underground utility detection surveys for new projects, as it provides a safer utility mapping method, and helps to determine the feasibility of a project with minimal impact.
Antenna Frequency For Mobile GPR
Our latest technology is vehicle towed Mobile GPR. Mobile GPR is positioned via a corrected Global Positioning System (GPS) and can record up to 50 linear kilometres of underground data per shift. Mobile GPR uses multiple low and intermediate frequency antennas to detect shallow and deep targets, which increases the quality of data achieved and boosts the reliability of object detection during the Mobile GPR process.
Mobile GPR Footway Solution
The Mobile GPR footway solution can adjusted to widths ranging from 1.0m - 2.0m. It uses dual frequency antennas (200MHZ) (600MHZ) so the Mobile GPR system can to detect both shallow and deep targets. The Mobile GPR solution can be accurately positioned using GNSS and TPS systems, which also gives an increased GPR footprint of 2.0m to allow for increased productivity. Mobile GPR Data is recorded and post-processed using specialist software, in-line with PAS-128 and 'The Essential Guide to Utility Surveys'.
Creating an overall picture using Mobile GPR
Combining Mobile GPR and GPR data with other specialist technologies on offer such as electromagnetic locator (EML), topographical survey data and digital design data, has enabled us to create a unique intelligent 3D survey result.
Mobile GPR, therefore, helps to provide a vision of where to carry out intrusive works and lets the user make the best possible informed decision before breaking any ground. This information helps reduce risk, costs and time, and enables collaboration between design teams and on-site personnel.