Dam Safety
All since 1993 personnel from GeoVista have developed and used geophysical methods to investigate large hydro power embankment dams. During 2002 a major investigation of a mine tailings dam was also conducted.
Contact: Hans Thunehed
Reference project
– LKAB’s dams at the Kirunavaara mine
During the summer/autumn of 2002 GeoVista carried out investigations on LKAB´s dams at the Kirunavaara mine.
The figure shows the potential from water flow as measured on one of the LKAB dams.
Our services
– Investigation of dam status
Dependent on the construction and surrounding of the dam an investigation of the dam´s status can be made with geophysical methods. Geo-radar is commonly a suitable method to establish the depth to the core and to investigate possible subsidence or in homogeneities in the upper part of the core. Resistivity surveys and measurements of self-potential (SP) are used to investigate also the deeper portions.
– Long term monitoring
A system for automatic monitoring of the core in an embankment dam has been developed and tested on the Eastern Suorva dam in the Luleå river between the years of 1993 to 1999. The method is based on electrical surveys.
