Multibeam Sonar Survey of a Brine Cavity (H222)

We were appointed by INEOS Inovyn to survey a brine cavity (H222) of approximately 1.2 million cubic metres located beneath a 1,600-hectare brinefield, as part of their brine cavity logging programme. 

Northwich is a historic salt town where brine mining and processing continue today by INEOS to... Read more

Type of work: 3D Laser Scan Survey, Mining and Minerals, Multibeam Sonar Survey

Multibeam Sonar Survey of an Old Mine Shaft and Drainage Adit

We were requested by the Mining Remediation Authority (MRA) to survey a legacy mine shaft and connecting drainage adit following a significant ‘blowout’ event in a residential area. 

The drainage adit, originally built to channel water away from the mine... Read more

Type of work: 3D Laser Scan Survey, Mining and Minerals, Multibeam Sonar Survey

Historic Lead Mine Adit and New Drainage Tunnel 3D Laser Scan Survey

Geoterra was appointed by civil engineers, Walters Group, to carry out an above- and below-ground 3D laser scan survey of a historic lead mine adit (Adit 9) and a newly installed drainage tunnel connecting to the adit. Walters Group... Read more

Type of work: Mining and Minerals, Remote Access Survey, Subsurface Laser Scan Survey

Subsurface Laser Scan and Multibeam 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, HD CCTV Survey, Mining and Minerals, Multibeam Sonar Survey, Remote Access Survey, Subsurface Laser Scan Survey

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: Mining and Minerals, Subsurface Laser Scan Survey

Sonar survey of a water-filled coal mine roadway beneath railway station

A new railway station was due to be constructed in Willenhall, Staffordshire on the Wolverhampton to Walsall mainline.

Historic mine plans indicated that a coal mine roadway was situated directly beneath where the proposed new railway station was to be built.... Read more

Type of work: 3D Laser Scan Survey, Civil Engineering, Mining and Minerals, Multibeam Sonar Survey, Rail