Subsurface Laser Scanning Ltd. was commissioned to carry out the subsurface void measurement at the Old Adit at the Great Laxey Mine on the Isle of Man .
Limestone quarries can be afflicted with large underground cavities created by water erosion common to karst regions.
Subsurface Laser Scanning Ltd. were recently called in to investigate a hole that opened up after a blast in a large Yorkshire Quarry.
Recently Subsurface Laser Scanning Ltd. was asked to help with the site investigations works on Scotland’s new Borders Rail project. Engineers had discovered large cavities in a viaduct which is being reused on the new Waverly line to Edinburgh.
Cavities which have formed behind tunnel lining can be difficult to assess and plan for remedial action to secure the tunnel.
Subsurface Laser Scanning Ltd. have added an ROV for underwater inspection to our growing list of services.
Chartered Geospatial Engineering Survey
Formed in 1999, Coastway are one of the most progressive and diverse engineering surveying companies in the Construction, Civil Engineering and Architectural Sectors.
AGEC is a company of highly qualified and experienced geotechnical engineers and engineering geologists. AGEC was established in 2001 to provide specialist geotechnical consultancy and engineering geology advice to the engineering industry.
Both laser and sonar instruments allow for the accurate geo-referenced measurement of underground cavities via boreholes or small openings.
Laser scanning is carried out on dry cavities, typically abandoned mine workings and large structural cavities. Sonar can be deployed in waterlogged voids, karst aquifers and flooded mines for example.
Our geospatial and geotechnical engineers can interpret the results and advise on actions and design limitations above ground. We operate in Ireland the U.K. and overseas.
The C-ALS and Sonar can be used to measure any cavities or small spaces where access is limited and ordinary survey techniques cannot be used. All our work is carried out to the highest geodetic survey standard and is fully geo-referenced.