Subsurface Laser Scan and Multi-beam Sonar Survey of Former Historical Coal Mine Shaft

Geoterra was contracted by The Coal Authority to survey a partially submerged coal mine shaft in the UK. The survey aimed to assess the structural integrity of the shaft, which had partially collapsed and was filling with water after mine... Read more

Type of work: 3D Laser Scan Survey, Civil Engineering, Land Survey, Mining and Minerals, Sonar Surveys -Multi Beam, Subsurface Laser Scanning, Underground Surveying

Underground 3D laser scan survey of second sinkhole and bell pit on playing field

In February 2020, Geoterra surveyed a sinkhole and bell pit that had appeared on Sappers Field in Wooburn Green. This sinkhole and bell pit was backfilled and remediated by Soil Engineering in 2022.

Prior to being a playing field, the... Read more

Type of work: 3D Laser Scan Survey, Civil Engineering, Land Survey, Subsurface Laser Scanning, Underground Surveying

Subsurface Laser Scan Survey of Historic Lead Mine Shaft

Geoinvestigate appointed Geoterra to carry out a 3D subsurface laser scan and HD video survey of a historic lead mine shaft. The mine potentially dated back to the 1700s when the Talargoch mine was extracting lead ore. The lead mine... Read more

Type of work: 3D Laser Scan Survey, Land Survey, Laser Scanning, Mining and Minerals, Subsurface Laser Scanning, Underground Surveying

Drainage Culvert Survey Beneath East Coast Main Line

Geoterra was appointed by AMCO Giffen and Network Rail to carry out a 3D topographical laser scan survey of the surface, and a subsurface laser scan and remote UAV photogrammetry survey of a brick-built drainage culvert. This culvert had been... Read more

Type of work: 3D Laser Scan Survey, Civil Engineering, Culvert Survey, Land Survey, Laser Scanning, Rail, Subsurface Laser Scanning, UAV Aerial Surveying, Underground Surveying

Subsurface Laser Scan and UAV Photogrammetry Survey of Air Raid Shelter

Geoterra was appointed by M-AR and Bromley Council to carry out a 3D topographical laser scan survey above and below ground, as well as a remote UAV photographic survey of a historic air raid shelter. The air raid shelter had... Read more

Type of work: 3D Laser Scan Survey, Land Survey, Laser Scanning, Subsurface Laser Scanning, UAV Aerial Surveying, Underground Surveying

Historic Coal Mine Subsurface Laser Scan Survey

Geoterra was appointed by The Coal Authority to determine the location, size and orientation of an historical coal mine void that had been discovered beneath a main road and its adjacent properties. 

The coal mine had been discovered... Read more

Type of work: 3D Laser Scan Survey, Civil Engineering, Laser Scanning, Mining and Minerals, Subsurface Laser Scanning, Underground Surveying