On the E10 Otterhällan project in Gothenburg, we provided precise geodetic control during pipe umbrella drilling. A method that creates a protective system of pre-drilled tubes above the tunnel profile. This technique is used in areas with poor geology or limited overburden, where standard excavation methods are not safe.
Each borehole was aligned along a 3D-defined trajectory. During drilling, we continuously monitored the position of the drilling arm and provided real-time corrections to ensure maximum accuracy.
The result: safe execution, protection of surface structures, and a stable tunnel profile support.
Photographs taken with the client’s permission: Jan Sasyn / Trigorn AB
Adjustment of an extensive geodetic network, processing more than 40,000 terrestrial observations, network adjustment using our customized software, and supplementary verification with a gyrotheodolite. Klient: LKAB
Underground tunnel project in Gothenburg – development of transport infrastructure. Klient: Veidekke
2025
Installation of technological equipment for deep mining operations. Klient: Jernbro
2018–2025
Our work also continues on the megaproject of transforming the city of Kiruna. From a geodetic perspective, we have contributed to the construction of the Educational Center (Kunskapstaden), the Police Station (Polishuset), the Indoor Pool and Wellness Center (Badhuset), as well as large residential districts. Klient: New Kiruna
2025
We have also created a 3D model of machine components using reverse engineering methods, achieving a surface accuracy of 0.3 mm. Klient: Afry
2023–2025
We are finalizing a two-year project focused on surveying and adjusting the geodetic network in the Malmberget underground mine. In total, we carried out more than 20,000 terrestrial observations, with the full network adjustment processed in specially customized software. Klient: LKAB
Precize measuring you can build on ™
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