Introduction
As the first company in Europe to use a survey grade laser scanner, L&M Survey Services have developed a high level of expertise in using laser scanning technology. We use this combination of technology and skills to provide 2D elevations, 2D floor plans, 3D models, tunnel cross-sections, railway rock cuttings, topographical surveys for inaccessible areas and the monitoring of structures.
The efficiency, speed and accuracy of the Leica ScanStation far exceeds that available with traditional methods, and allows us to deliver files to our clients in any format, from 2D – 3D autocad files to 3D PDFs.
Case Study
L&M is currently working on a project on behalf of Glasgow City Council Land Services who are upgrading Dalmarnock Rd, a key route from the city centre to the east end, in preparation for the Commonwealth Games in 2014.
With work on a stretch of the road affecting the integrity of Dalmarnock Tunnel below, we carried out a 3D laser scan on a 150m section of the 1km-long tunnel. We provided accurate cross-sections, allowing the depth from the rooftop to the road to be established. A full 3D model of the tunnel will be delivered to the client, which will incorporate a utility survey of the ground above in the diversion area.
Case Study
Civil engineers Arup-Manchester appointed L&M to carry out a topographical survey of Edinburgh’s Waverly Station which they are redeveloping. On completion of this survey, we were asked to provide a 3D model of the adjacent Mound Tunnel, to assist with the electrification of new Bathgate line.
We carried out the work using the latest Leica ScanStation technology to produce a 3D point cloud that was geo-referenced with the topographical survey. From this point cloud a triangulated mesh model was created as the final deliverable to the client.
Specialist Equipment
Leica ScanStation
We were the first company in Europe to use the Leica ScanStation for measured building surveys. This fastest pulsed laser scanner has survey-grade tilt compensation which means lower project costs, greater field flexibility and higher project accuracy. With a capture range of up to 300m for 90% surface reflectivity, ScanStation delivers survey accuracy for each measurement and its ultra-fine scanning and small laser spot allow for optimal project control and registration.
